annotate src/video/nds/SDL_ndsrender.c @ 5145:c8e049de174c

Making the API simpler, the renderer present semantics are always having a backbuffer and then discarding it. This is best for hardware accelerated rendering.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Feb 2011 12:19:46 -0800
parents 31e7f523ab3d
children be02be2ea897
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #include <stdio.h>
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24 #include <stdlib.h>
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25 #include <nds.h>
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26 //#include <nds/arm9/video.h>
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27 //#include <nds/arm9/sprite.h>
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28 //#include <nds/arm9/trig_lut.h>
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29
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30 #include "SDL_config.h"
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31
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32 #include "SDL_video.h"
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33 #include "../SDL_sysvideo.h"
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34 #include "../SDL_yuv_sw_c.h"
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35 #include "../SDL_renderer_sw.h"
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36
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37 /* SDL NDS renderer implementation */
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38
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39 static SDL_Renderer *NDS_CreateRenderer(SDL_Window * window, Uint32 flags);
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40 static int NDS_ActivateRenderer(SDL_Renderer * renderer);
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41 static int NDS_DisplayModeChanged(SDL_Renderer * renderer);
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42 static int NDS_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
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43 static int NDS_QueryTexturePixels(SDL_Renderer * renderer,
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44 SDL_Texture * texture, void **pixels,
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45 int *pitch);
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46 static int NDS_SetTexturePalette(SDL_Renderer * renderer,
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47 SDL_Texture * texture,
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48 const SDL_Color * colors, int firstcolor,
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49 int ncolors);
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50 static int NDS_GetTexturePalette(SDL_Renderer * renderer,
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51 SDL_Texture * texture, SDL_Color * colors,
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52 int firstcolor, int ncolors);
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53 static int NDS_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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54 const SDL_Rect * rect, const void *pixels,
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55 int pitch);
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56 static int NDS_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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57 const SDL_Rect * rect, int markDirty,
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58 void **pixels, int *pitch);
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59 static void NDS_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
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60 static int NDS_RenderFill(SDL_Renderer * renderer, Uint8 r, Uint8 g,
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61 Uint8 b, Uint8 a, const SDL_Rect * rect);
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62 static int NDS_RenderCopy(SDL_Renderer * renderer,
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63 SDL_Texture * texture,
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64 const SDL_Rect * srcrect, const SDL_Rect * dstrect);
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65 static void NDS_RenderPresent(SDL_Renderer * renderer);
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66 static void NDS_DestroyTexture(SDL_Renderer * renderer,
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67 SDL_Texture * texture);
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68 static void NDS_DestroyRenderer(SDL_Renderer * renderer);
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69
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70
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71 SDL_RenderDriver NDS_RenderDriver = {
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72 NDS_CreateRenderer,
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73 {"nds", /* char* name */
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74 (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC), /* u32 flags */
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75 3, /* u32 num_texture_formats */
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76 {
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77 SDL_PIXELFORMAT_INDEX8,
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78 SDL_PIXELFORMAT_ABGR1555,
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79 SDL_PIXELFORMAT_BGR555,
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80 }, /* u32 texture_formats[20] */
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81 (256), /* int max_texture_width */
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82 (256), /* int max_texture_height */
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83 }
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84 };
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85
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86 typedef struct
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87 {
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88 u8 bg_taken[4];
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89 OamState *oam;
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90 int sub;
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91 } NDS_RenderData;
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92
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93 typedef struct
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94 {
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95 enum
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96 { NDSTX_BG, NDSTX_SPR } type; /* represented in a bg or sprite. */
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97 int hw_index; /* index of sprite in OAM or bg from libnds */
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98 int pitch, bpp; /* useful information about the texture */
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99 struct
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100 {
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101 int x, y;
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102 } scale; /* x/y stretch (24.8 fixed point) */
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103 struct
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104 {
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105 int x, y;
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106 } scroll; /* x/y offset */
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107 int rotate; /* -32768 to 32767, texture rotation */
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108 u16 *vram_pixels; /* where the pixel data is stored (a pointer into VRAM) */
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109 u16 *vram_palette; /* where the palette data is stored if it's indexed. */
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110 /*int size; */
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111 } NDS_TextureData;
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112
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113
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114
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115 SDL_Renderer *
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116 NDS_CreateRenderer(SDL_Window * window, Uint32 flags)
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117 {
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118 SDL_VideoDisplay *display = window->display;
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119 SDL_DisplayMode *displayMode = &display->current_mode;
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120 SDL_Renderer *renderer;
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121 NDS_RenderData *data;
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122 int i, n;
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123 int bpp;
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124 Uint32 Rmask, Gmask, Bmask, Amask;
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125
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126 if (!SDL_PixelFormatEnumToMasks(displayMode->format, &bpp,
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127 &Rmask, &Gmask, &Bmask, &Amask)) {
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128 SDL_SetError("Unknown display format");
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129 return NULL;
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130 }
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131 switch (displayMode->format) {
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132 case SDL_PIXELFORMAT_INDEX8:
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133 case SDL_PIXELFORMAT_ABGR1555:
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134 case SDL_PIXELFORMAT_BGR555:
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135 /* okay */
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136 break;
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137 case SDL_PIXELFORMAT_RGB555:
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138 case SDL_PIXELFORMAT_RGB565:
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139 case SDL_PIXELFORMAT_ARGB1555:
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140 /* we'll take these too for now */
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141 break;
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142 default:
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143 SDL_SetError("Warning: wrong display format for NDS!\n");
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144 break;
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diff changeset
145 }
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diff changeset
146
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147 renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
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148 if (!renderer) {
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149 SDL_OutOfMemory();
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diff changeset
150 return NULL;
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diff changeset
151 }
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diff changeset
152
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153 data = (NDS_RenderData *) SDL_malloc(sizeof(*data));
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diff changeset
154 if (!data) {
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155 NDS_DestroyRenderer(renderer);
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diff changeset
156 SDL_OutOfMemory();
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diff changeset
157 return NULL;
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diff changeset
158 }
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diff changeset
159 SDL_zerop(data);
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diff changeset
160
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diff changeset
161 renderer->RenderFill = NDS_RenderFill;
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162 renderer->RenderCopy = NDS_RenderCopy;
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163 renderer->RenderPresent = NDS_RenderPresent;
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164 renderer->DestroyRenderer = NDS_DestroyRenderer;
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165 renderer->info.name = NDS_RenderDriver.info.name;
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166 renderer->info.flags = 0;
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64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
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diff changeset
167 renderer->window = window;
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168 renderer->driverdata = data;
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169 renderer->CreateTexture = NDS_CreateTexture;
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170 renderer->QueryTexturePixels = NDS_QueryTexturePixels;
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171 renderer->SetTexturePalette = NDS_SetTexturePalette;
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172 renderer->GetTexturePalette = NDS_GetTexturePalette;
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173 renderer->UpdateTexture = NDS_UpdateTexture;
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174 renderer->LockTexture = NDS_LockTexture;
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175 renderer->UnlockTexture = NDS_UnlockTexture;
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176 renderer->DestroyTexture = NDS_DestroyTexture;
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diff changeset
177
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diff changeset
178 renderer->info.num_texture_formats =
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179 NDS_RenderDriver.info.num_texture_formats;
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180 SDL_memcpy(renderer->info.texture_formats,
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181 NDS_RenderDriver.info.texture_formats,
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diff changeset
182 sizeof(renderer->info.texture_formats));
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diff changeset
183 renderer->info.max_texture_width =
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diff changeset
184 NDS_RenderDriver.info.max_texture_width;
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diff changeset
185 renderer->info.max_texture_height =
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diff changeset
186 NDS_RenderDriver.info.max_texture_height;
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diff changeset
187
3139
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188 data->sub = 0; /* TODO: this is hard-coded to the "main" screen.
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189 figure out how to detect whether to set it to
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190 "sub" screen. window->id, perhaps? */
2735
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191 data->bg_taken[2] = data->bg_taken[3] = 0;
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diff changeset
192
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193 return renderer;
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diff changeset
194 }
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diff changeset
195
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196 static int
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197 NDS_ActivateRenderer(SDL_Renderer * renderer)
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diff changeset
198 {
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199 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
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diff changeset
200
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diff changeset
201 return 0;
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diff changeset
202 }
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diff changeset
203
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diff changeset
204 static int
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diff changeset
205 NDS_DisplayModeChanged(SDL_Renderer * renderer)
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diff changeset
206 {
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diff changeset
207 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
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diff changeset
208
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209 return 0;
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diff changeset
210 }
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diff changeset
211
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diff changeset
212 static int
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213 NDS_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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diff changeset
214 {
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215 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
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diff changeset
216 NDS_TextureData *txdat = NULL;
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diff changeset
217 int i;
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diff changeset
218 int bpp;
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diff changeset
219 Uint32 Rmask, Gmask, Bmask, Amask;
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diff changeset
220
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221 if (!SDL_PixelFormatEnumToMasks
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diff changeset
222 (texture->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
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diff changeset
223 SDL_SetError("Unknown texture format");
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224 return -1;
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diff changeset
225 }
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diff changeset
226
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diff changeset
227 /* conditional statements on w/h to place it as bg/sprite
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diff changeset
228 depending on which one it fits. */
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diff changeset
229 if (texture->w <= 64 && texture->h <= 64) {
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diff changeset
230 int whichspr = -1;
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
231 printf("NDS_CreateTexture: Tried to make a sprite.\n");
2735
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diff changeset
232 txdat->type = NDSTX_SPR;
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
233 #if 0
2735
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diff changeset
234 for (i = 0; i < SPRITE_COUNT; ++i) {
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diff changeset
235 if (data->oam_copy.spriteBuffer[i].attribute[0] & ATTR0_DISABLED) {
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diff changeset
236 whichspr = i;
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diff changeset
237 break;
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diff changeset
238 }
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diff changeset
239 }
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diff changeset
240 if (whichspr >= 0) {
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diff changeset
241 SpriteEntry *sprent = &(data->oam_copy.spriteBuffer[whichspr]);
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diff changeset
242 int maxside = texture->w > texture->h ? texture->w : texture->h;
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diff changeset
243 int pitch;
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diff changeset
244
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diff changeset
245 texture->driverdata = SDL_calloc(1, sizeof(NDS_TextureData));
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diff changeset
246 txdat = (NDS_TextureData *) texture->driverdata;
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diff changeset
247 if (!txdat) {
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diff changeset
248 SDL_OutOfMemory();
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diff changeset
249 return -1;
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parents:
diff changeset
250 }
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diff changeset
251
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diff changeset
252 sprent->objMode = OBJMODE_BITMAP;
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diff changeset
253 sprent->posX = 0;
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diff changeset
254 sprent->posY = 0;
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diff changeset
255 sprent->colMode = OBJCOLOR_16; /* OBJCOLOR_256 for INDEX8 */
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parents:
diff changeset
256
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parents:
diff changeset
257 /* the first 32 sprites get transformation matrices.
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parents:
diff changeset
258 first come, first served */
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diff changeset
259 if (whichspr < MATRIX_COUNT) {
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diff changeset
260 sprent->isRotoscale = 1;
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parents:
diff changeset
261 sprent->rsMatrixIdx = whichspr;
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parents:
diff changeset
262 }
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diff changeset
263
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diff changeset
264 /* containing shape (square or 2:1 rectangles) */
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diff changeset
265 sprent->objShape = OBJSHAPE_SQUARE;
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parents:
diff changeset
266 if (texture->w / 2 >= texture->h) {
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diff changeset
267 sprent->objShape = OBJSHAPE_WIDE;
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diff changeset
268 } else if (texture->h / 2 >= texture->w) {
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diff changeset
269 sprent->objShape = OBJSHAPE_TALL;
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diff changeset
270 }
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diff changeset
271
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diff changeset
272 /* size in pixels */
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diff changeset
273 /* FIXME: "pitch" is hardcoded for 2bytes per pixel. */
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diff changeset
274 sprent->objSize = OBJSIZE_64;
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diff changeset
275 pitch = 128;
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parents:
diff changeset
276 if (maxside <= 8) {
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diff changeset
277 sprent->objSize = OBJSIZE_8;
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diff changeset
278 pitch = 16;
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diff changeset
279 } else if (maxside <= 16) {
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diff changeset
280 sprent->objSize = OBJSIZE_16;
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diff changeset
281 pitch = 32;
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diff changeset
282 } else if (maxside <= 32) {
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diff changeset
283 sprent->objSize = OBJSIZE_32;
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diff changeset
284 pitch = 64;
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diff changeset
285 }
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parents:
diff changeset
286
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diff changeset
287 /* FIXME: this is hard-coded and will obviously only work for one
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diff changeset
288 sprite-texture. tells it to look at the beginning of SPRITE_GFX
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parents:
diff changeset
289 for its pixels. */
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parents:
diff changeset
290 sprent->tileIdx = 0;
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parents:
diff changeset
291
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parents:
diff changeset
292 /* now for the texture data */
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parents:
diff changeset
293 txdat->type = NDSTX_SPR;
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parents:
diff changeset
294 txdat->hw_index = whichspr;
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parents:
diff changeset
295 txdat->dim.hdx = 0x100;
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parents:
diff changeset
296 txdat->dim.hdy = 0;
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parents:
diff changeset
297 txdat->dim.vdx = 0;
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parents:
diff changeset
298 txdat->dim.vdy = 0x100;
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parents:
diff changeset
299 txdat->dim.pitch = pitch;
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parents:
diff changeset
300 txdat->dim.bpp = bpp;
3139
Sam Lantinga <slouken@libsdl.org>
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diff changeset
301 txdat->vram_pixels =
Sam Lantinga <slouken@libsdl.org>
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diff changeset
302 (u16 *) (data->sub ? SPRITE_GFX_SUB : SPRITE_GFX);
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
303 /* FIXME: use tileIdx*boundary
3139
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diff changeset
304 to point to proper location */
2735
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parents:
diff changeset
305 } else {
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parents:
diff changeset
306 SDL_SetError("Out of NDS sprites.");
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parents:
diff changeset
307 }
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c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
308 #endif
2735
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diff changeset
309 } else if (texture->w <= 256 && texture->h <= 256) {
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parents:
diff changeset
310 int whichbg = -1, base = 0;
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parents:
diff changeset
311 if (!data->bg_taken[2]) {
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parents:
diff changeset
312 whichbg = 2;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 } else if (!data->bg_taken[3]) {
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parents:
diff changeset
314 whichbg = 3;
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parents:
diff changeset
315 base = 4;
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parents:
diff changeset
316 }
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parents:
diff changeset
317 if (whichbg >= 0) {
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parents:
diff changeset
318 texture->driverdata = SDL_calloc(1, sizeof(NDS_TextureData));
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parents:
diff changeset
319 txdat = (NDS_TextureData *) texture->driverdata;
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parents:
diff changeset
320 if (!txdat) {
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parents:
diff changeset
321 SDL_OutOfMemory();
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322 return -1;
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323 }
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c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
324 // hard-coded for 256x256 for now...
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
325 // TODO: a series of if-elseif-else's to find the closest but larger size.
3139
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326 if (!data->sub) {
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327 if (bpp == 8) {
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328 txdat->hw_index =
Sam Lantinga <slouken@libsdl.org>
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329 bgInit(whichbg, BgType_Bmp8, BgSize_B8_256x256, 0, 0);
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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330 } else {
3139
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331 txdat->hw_index =
Sam Lantinga <slouken@libsdl.org>
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diff changeset
332 bgInit(whichbg, BgType_Bmp16, BgSize_B16_256x256, 0,
Sam Lantinga <slouken@libsdl.org>
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diff changeset
333 0);
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diff changeset
334 }
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
335 } else {
3139
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diff changeset
336 if (bpp == 8) {
Sam Lantinga <slouken@libsdl.org>
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diff changeset
337 txdat->hw_index =
Sam Lantinga <slouken@libsdl.org>
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diff changeset
338 bgInitSub(whichbg, BgType_Bmp8, BgSize_B8_256x256, 0,
Sam Lantinga <slouken@libsdl.org>
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diff changeset
339 0);
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
340 } else {
3139
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341 txdat->hw_index =
Sam Lantinga <slouken@libsdl.org>
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diff changeset
342 bgInitSub(whichbg, BgType_Bmp16, BgSize_B16_256x256,
Sam Lantinga <slouken@libsdl.org>
parents: 3073
diff changeset
343 0, 0);
3073
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344 }
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345 }
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346
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diff changeset
347 /* useful functions
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348 bgGetGfxPtr(bg3);
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diff changeset
349 bgSetCenter(bg3, rcX, rcY);
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diff changeset
350 bgSetRotateScale(bg3, angle, scaleX, scaleY);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
351 bgSetScroll(bg3, scrollX, scrollY);
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diff changeset
352 bgUpdate(bg3);
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diff changeset
353 */
2735
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354 txdat->type = NDSTX_BG;
3139
Sam Lantinga <slouken@libsdl.org>
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diff changeset
355 txdat->pitch = (texture->w) * (bpp / 8);
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
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diff changeset
356 txdat->bpp = bpp;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
357 txdat->rotate = 0;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
358 txdat->scale.x = 0x100;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
359 txdat->scale.y = 0x100;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
360 txdat->scroll.x = 0;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
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diff changeset
361 txdat->scroll.y = 0;
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3073
diff changeset
362 txdat->vram_pixels = (u16 *) bgGetGfxPtr(txdat->hw_index);
2735
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parents:
diff changeset
363
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
364 bgSetCenter(txdat->hw_index, 0, 0);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
365 bgSetRotateScale(txdat->hw_index, txdat->rotate, txdat->scale.x,
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
366 txdat->scale.y);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
367 bgSetScroll(txdat->hw_index, txdat->scroll.x, txdat->scroll.y);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
368 bgUpdate(txdat->hw_index);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
369
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
370 data->bg_taken[whichbg] = 1;
2735
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parents:
diff changeset
371 /*txdat->size = txdat->dim.pitch * texture->h; */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
372 } else {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
373 SDL_SetError("Out of NDS backgrounds.");
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 } else {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376 SDL_SetError("Texture too big for NDS hardware.");
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 if (!texture->driverdata) {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380 return -1;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
382
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
383 return 0;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386 static int
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387 NDS_QueryTexturePixels(SDL_Renderer * renderer, SDL_Texture * texture,
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388 void **pixels, int *pitch)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
390 NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
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parents:
diff changeset
391 *pixels = txdat->vram_pixels;
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
392 *pitch = txdat->pitch;
2735
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parents:
diff changeset
393 return 0;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
394 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
395
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 static int
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 NDS_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398 const SDL_Rect * rect, const void *pixels, int pitch)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
399 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
400 NDS_TextureData *txdat;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
401 Uint8 *src, *dst;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 int row;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403 size_t length;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
404
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
405 txdat = (NDS_TextureData *) texture->driverdata;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 src = (Uint8 *) pixels;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408 dst =
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
409 (Uint8 *) txdat->vram_pixels + rect->y * txdat->pitch + rect->x *
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
410 ((txdat->bpp + 1) / 8);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
411 length = rect->w * ((txdat->bpp + 1) / 8);
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413 if (rect->w == texture->w) {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
414 dmaCopy(src, dst, length * rect->h);
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 } else {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416 for (row = 0; row < rect->h; ++row) {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417 dmaCopy(src, dst, length);
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418 src += pitch;
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
419 dst += txdat->pitch;
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
420 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
421 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
422
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
423 return 0;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
425
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
426 static int
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
427 NDS_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
428 const SDL_Rect * rect, int markDirty, void **pixels,
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
429 int *pitch)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
430 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
431 NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
432
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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parents: 2884
diff changeset
433 *pixels = (void *) ((u8 *) txdat->vram_pixels + rect->y * txdat->pitch +
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
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diff changeset
434 rect->x * ((txdat->bpp + 1) / 8));
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
435 *pitch = txdat->pitch;
2735
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parents:
diff changeset
436
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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diff changeset
437 return 0;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
438 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
439
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parents:
diff changeset
440 static void
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diff changeset
441 NDS_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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diff changeset
442 {
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diff changeset
443 /* stub! */
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parents:
diff changeset
444 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
445
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parents:
diff changeset
446 static int
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diff changeset
447 NDS_RenderFill(SDL_Renderer * renderer, Uint8 r, Uint8 g, Uint8 b,
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parents:
diff changeset
448 Uint8 a, const SDL_Rect * rect)
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parents:
diff changeset
449 {
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diff changeset
450 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
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diff changeset
451 SDL_Rect real_rect = *rect;
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diff changeset
452 u16 color;
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parents:
diff changeset
453 int i, j;
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parents:
diff changeset
454
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c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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455 printf("NDS_RenderFill: stub\n");
3139
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diff changeset
456 color = RGB8(r, g, b); /* macro in libnds that makes an ARGB1555 pixel */
2735
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parents:
diff changeset
457 /* TODO: make a single-color sprite and stretch it.
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
458 calculate the "HDX" width modifier of the sprite by:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
459 let S be the actual sprite's width (like, 32 pixels for example)
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
460 let R be the rectangle's width (maybe 50 pixels)
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diff changeset
461 HDX = (R<<8) / S;
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diff changeset
462 (it's fixed point, hence the bit shift. same goes for vertical.
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diff changeset
463 be sure to use 32-bit int's for the bit shift before the division!)
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
464 */
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parents:
diff changeset
465
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diff changeset
466 return 0;
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parents:
diff changeset
467 }
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parents:
diff changeset
468
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
469 static int
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parents:
diff changeset
470 NDS_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
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parents:
diff changeset
471 const SDL_Rect * srcrect, const SDL_Rect * dstrect)
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
472 {
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parents:
diff changeset
473 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
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diff changeset
474 NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
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parents: 3139
diff changeset
475 SDL_Window *window = renderer->window;
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
476 SDL_VideoDisplay *display = window->display;
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c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
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diff changeset
477 int Bpp = SDL_BYTESPERPIXEL(texture->format);
2735
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diff changeset
478
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
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diff changeset
479 if (txdat->type == NDSTX_BG) {
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c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
480 txdat->scroll.x = dstrect->x;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
481 txdat->scroll.y = dstrect->y;
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diff changeset
482 } else {
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parents:
diff changeset
483 /* sprites not fully implemented yet */
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c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
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diff changeset
484 printf("NDS_RenderCopy: used sprite!\n");
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
485 // SpriteEntry *spr = &(data->oam_copy.spriteBuffer[txdat->hw_index]);
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
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diff changeset
486 // spr->posX = dstrect->x;
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diff changeset
487 // spr->posY = dstrect->y;
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
488 // if (txdat->hw_index < MATRIX_COUNT && spr->isRotoscale) {
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
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diff changeset
489 // }
2735
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diff changeset
490 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
491
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parents:
diff changeset
492 return 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
493 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
494
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
495
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
496 static void
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parents:
diff changeset
497 NDS_RenderPresent(SDL_Renderer * renderer)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
498 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
499 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
500 SDL_Window *window = renderer->window;
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
501 SDL_VideoDisplay *display = window->display;
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
502
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
503 /* update sprites */
3073
c5280d33c32a NDS compiles again, but may not yet work. Sprite support has been removed for the time being while it is re-worked.
Darren Alton <dalton@stevens.edu>
parents: 2884
diff changeset
504 // NDS_OAM_Update(&(data->oam_copy), data->sub);
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
505 /* vsync for NDS */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
506 if (renderer->info.flags & SDL_RENDERER_PRESENTVSYNC) {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
507 swiWaitForVBlank();
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
508 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
509 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
510
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
511 static void
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
512 NDS_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
513 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
514 NDS_TextureData *txdat = texture->driverdata;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
515 /* free anything else allocated for texture */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
516 SDL_free(txdat);
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
517 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
518
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
519 static void
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
520 NDS_DestroyRenderer(SDL_Renderer * renderer)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
521 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
522 NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
523 int i;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
524
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
525 if (data) {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
526 /* free anything else relevant if anything else is allocated. */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
527 SDL_free(data);
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
528 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
529 SDL_free(renderer);
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
530 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
531
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
532 static int
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
533 NDS_SetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
534 const SDL_Color * colors, int firstcolor, int ncolors)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
535 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
536 NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
537 /* set 8-bit modes in the background control registers
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
538 for backgrounds, BGn_CR |= BG_256_COLOR */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
539
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
540 return 0;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
541 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
542
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
543 static int
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
544 NDS_GetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
545 SDL_Color * colors, int firstcolor, int ncolors)
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
546 {
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
547 NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
548 /* stub! */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
549 return 0;
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
550 }
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
551
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
552 /* vi: set ts=4 sw=4 expandtab: */