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comparison src/video/riscos/SDL_riscossprite.c @ 1668:4da1ee79c9af SDL-1.3

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more tweaking indent options
author Sam Lantinga <slouken@libsdl.org>
date Mon, 29 May 2006 04:04:35 +0000
parents 782fd950bd46
children
comparison
equal deleted inserted replaced
1667:1fddae038bc8 1668:4da1ee79c9af
32 #include "swis.h" 32 #include "swis.h"
33 33
34 #include "SDL_stdinc.h" 34 #include "SDL_stdinc.h"
35 #include "SDL_riscosvideo.h" 35 #include "SDL_riscosvideo.h"
36 36
37 extern void WIMP_ReadModeInfo (_THIS); 37 extern void WIMP_ReadModeInfo(_THIS);
38 38
39 void WIMP_PaletteChanged (_THIS); 39 void WIMP_PaletteChanged(_THIS);
40 40
41 41
42 /* Create sprite buffer for screen */ 42 /* Create sprite buffer for screen */
43 43
44 unsigned char * 44 unsigned char *
45 WIMP_CreateBuffer (int width, int height, int bpp) 45 WIMP_CreateBuffer(int width, int height, int bpp)
46 { 46 {
47 int size; 47 int size;
48 char sprite_name[12] = "display"; 48 char sprite_name[12] = "display";
49 unsigned char *buffer; 49 unsigned char *buffer;
50 _kernel_swi_regs regs; 50 _kernel_swi_regs regs;
73 if ((bytesPerRow & 3) != 0) { 73 if ((bytesPerRow & 3) != 0) {
74 bytesPerRow += 4 - (bytesPerRow & 3); 74 bytesPerRow += 4 - (bytesPerRow & 3);
75 } 75 }
76 size = bytesPerRow * height; 76 size = bytesPerRow * height;
77 77
78 buffer = SDL_malloc ((size_t) size + offsetToSpriteData); 78 buffer = SDL_malloc((size_t) size + offsetToSpriteData);
79 if (!buffer) 79 if (!buffer)
80 return NULL; 80 return NULL;
81 81
82 /* Initialise a sprite area */ 82 /* Initialise a sprite area */
83 83
84 *(unsigned int *) buffer = size + offsetToSpriteData; 84 *(unsigned int *) buffer = size + offsetToSpriteData;
85 *(unsigned int *) (buffer + 8) = 16; 85 *(unsigned int *) (buffer + 8) = 16;
86 86
87 regs.r[0] = 256 + 9; 87 regs.r[0] = 256 + 9;
88 regs.r[1] = (unsigned int) buffer; 88 regs.r[1] = (unsigned int) buffer;
89 _kernel_swi (OS_SpriteOp, &regs, &regs); 89 _kernel_swi(OS_SpriteOp, &regs, &regs);
90 90
91 regs.r[0] = 256 + 15; 91 regs.r[0] = 256 + 15;
92 regs.r[1] = (unsigned int) buffer; 92 regs.r[1] = (unsigned int) buffer;
93 regs.r[2] = (unsigned int) &sprite_name; 93 regs.r[2] = (unsigned int) &sprite_name;
94 regs.r[3] = 0; /* Palette flag: 0 = no palette */ 94 regs.r[3] = 0; /* Palette flag: 0 = no palette */
101 regs.r[6] = (((bpp == 16) ? 5 : 6) << 27) /* Type 6 = 32bpp sprite, 5 = 16bpp sprite */ 101 regs.r[6] = (((bpp == 16) ? 5 : 6) << 27) /* Type 6 = 32bpp sprite, 5 = 16bpp sprite */
102 |(90 << 14) /* Vertical dpi */ 102 |(90 << 14) /* Vertical dpi */
103 |(90 << 1) /* Horizontal dpi */ 103 |(90 << 1) /* Horizontal dpi */
104 |1; /* Marker to distinguish between mode selectors and sprite modes */ 104 |1; /* Marker to distinguish between mode selectors and sprite modes */
105 } 105 }
106 if (_kernel_swi (OS_SpriteOp, &regs, &regs) == NULL) { 106 if (_kernel_swi(OS_SpriteOp, &regs, &regs) == NULL) {
107 if (bpp == 8) { 107 if (bpp == 8) {
108 /* Modify sprite to take into account 256 colour palette */ 108 /* Modify sprite to take into account 256 colour palette */
109 int *sprite = (int *) (buffer + 16); 109 int *sprite = (int *) (buffer + 16);
110 /* Adjust sprite offsets */ 110 /* Adjust sprite offsets */
111 sprite[0] += 2048; 111 sprite[0] += 2048;
128 } 128 }
129 } 129 }
130 */ 130 */
131 } 131 }
132 } else { 132 } else {
133 SDL_free (buffer); 133 SDL_free(buffer);
134 buffer = NULL; 134 buffer = NULL;
135 } 135 }
136 136
137 return buffer; 137 return buffer;
138 } 138 }
139 139
140 140
141 /* Setup translation buffers for the sprite plotting */ 141 /* Setup translation buffers for the sprite plotting */
142 142
143 void 143 void
144 WIMP_SetupPlotInfo (_THIS) 144 WIMP_SetupPlotInfo(_THIS)
145 { 145 {
146 _kernel_swi_regs regs; 146 _kernel_swi_regs regs;
147 int *sprite = ((int *) this->hidden->bank[1]) + 4; 147 int *sprite = ((int *) this->hidden->bank[1]) + 4;
148 148
149 regs.r[0] = (unsigned int) this->hidden->bank[1]; 149 regs.r[0] = (unsigned int) this->hidden->bank[1];
154 regs.r[5] = 1 | 2 | 16; /* R1 - pointer to sprite and can use full palette words */ 154 regs.r[5] = 1 | 2 | 16; /* R1 - pointer to sprite and can use full palette words */
155 regs.r[6] = 0; 155 regs.r[6] = 0;
156 regs.r[7] = 0; 156 regs.r[7] = 0;
157 157
158 if (this->hidden->pixtrans) 158 if (this->hidden->pixtrans)
159 SDL_free (this->hidden->pixtrans); 159 SDL_free(this->hidden->pixtrans);
160 this->hidden->pixtrans = 0; 160 this->hidden->pixtrans = 0;
161 161
162 /* Get the size required for the buffer */ 162 /* Get the size required for the buffer */
163 _kernel_swi (ColourTrans_GenerateTable, &regs, &regs); 163 _kernel_swi(ColourTrans_GenerateTable, &regs, &regs);
164 if (regs.r[4]) { 164 if (regs.r[4]) {
165 this->hidden->pixtrans = SDL_malloc (regs.r[4]); 165 this->hidden->pixtrans = SDL_malloc(regs.r[4]);
166 166
167 regs.r[4] = (unsigned int) this->hidden->pixtrans; 167 regs.r[4] = (unsigned int) this->hidden->pixtrans;
168 /* Actually read the buffer */ 168 /* Actually read the buffer */
169 _kernel_swi (ColourTrans_GenerateTable, &regs, &regs); 169 _kernel_swi(ColourTrans_GenerateTable, &regs, &regs);
170 } 170 }
171 } 171 }
172 172
173 /* Plot the sprite in the given context */ 173 /* Plot the sprite in the given context */
174 void 174 void
175 WIMP_PlotSprite (_THIS, int x, int y) 175 WIMP_PlotSprite(_THIS, int x, int y)
176 { 176 {
177 _kernel_swi_regs regs; 177 _kernel_swi_regs regs;
178 _kernel_oserror *err; 178 _kernel_oserror *err;
179 179
180 regs.r[0] = 52 + 512; 180 regs.r[0] = 52 + 512;
184 regs.r[4] = y; 184 regs.r[4] = y;
185 regs.r[5] = 0 | 32; /* Overwrite screen and pixtrans contains wide colour entries */ 185 regs.r[5] = 0 | 32; /* Overwrite screen and pixtrans contains wide colour entries */
186 regs.r[6] = 0; /* No scale factors i.e. 1:1 */ 186 regs.r[6] = 0; /* No scale factors i.e. 1:1 */
187 regs.r[7] = (int) this->hidden->pixtrans; 187 regs.r[7] = (int) this->hidden->pixtrans;
188 188
189 if ((err = _kernel_swi (OS_SpriteOp, &regs, &regs)) != 0) { 189 if ((err = _kernel_swi(OS_SpriteOp, &regs, &regs)) != 0) {
190 int *p = (int *) this->hidden->pixtrans; 190 int *p = (int *) this->hidden->pixtrans;
191 printf ("OS_SpriteOp failed \n%s\n", err->errmess); 191 printf("OS_SpriteOp failed \n%s\n", err->errmess);
192 printf ("pixtrans %d\n", (int) this->hidden->pixtrans); 192 printf("pixtrans %d\n", (int) this->hidden->pixtrans);
193 printf ("%x %x %x\n", p[0], p[1], p[2]); 193 printf("%x %x %x\n", p[0], p[1], p[2]);
194 } 194 }
195 } 195 }
196 196
197 197
198 /* Wimp mode has changes so update colour mapping and pixel sizes 198 /* Wimp mode has changes so update colour mapping and pixel sizes
199 of windows and the sprites they plot */ 199 of windows and the sprites they plot */
200 200
201 void 201 void
202 WIMP_ModeChanged (_THIS) 202 WIMP_ModeChanged(_THIS)
203 { 203 {
204 int oldXeig = this->hidden->xeig; 204 int oldXeig = this->hidden->xeig;
205 int oldYeig = this->hidden->yeig; 205 int oldYeig = this->hidden->yeig;
206 206
207 WIMP_ReadModeInfo (this); 207 WIMP_ReadModeInfo(this);
208 208
209 if (oldXeig == this->hidden->xeig && oldYeig == this->hidden->yeig) { 209 if (oldXeig == this->hidden->xeig && oldYeig == this->hidden->yeig) {
210 /* Only need to update the palette */ 210 /* Only need to update the palette */
211 WIMP_PaletteChanged (this); 211 WIMP_PaletteChanged(this);
212 } else { 212 } else {
213 _kernel_swi_regs regs; 213 _kernel_swi_regs regs;
214 int window_state[9]; 214 int window_state[9];
215 int extent[4]; 215 int extent[4];
216 int currWidth, currHeight; 216 int currWidth, currHeight;
217 int newWidth, newHeight; 217 int newWidth, newHeight;
218 218
219 /* Need to resize windows and update the palette */ 219 /* Need to resize windows and update the palette */
220 WIMP_SetupPlotInfo (this); 220 WIMP_SetupPlotInfo(this);
221 221
222 222
223 window_state[0] = this->hidden->window_handle; 223 window_state[0] = this->hidden->window_handle;
224 regs.r[1] = (unsigned int) window_state; 224 regs.r[1] = (unsigned int) window_state;
225 _kernel_swi (Wimp_GetWindowState, &regs, &regs); 225 _kernel_swi(Wimp_GetWindowState, &regs, &regs);
226 226
227 currWidth = window_state[3] - window_state[1]; 227 currWidth = window_state[3] - window_state[1];
228 currHeight = window_state[4] - window_state[2]; 228 currHeight = window_state[4] - window_state[2];
229 229
230 newWidth = (currWidth >> oldXeig) << this->hidden->xeig; 230 newWidth = (currWidth >> oldXeig) << this->hidden->xeig;
244 } 244 }
245 extent[3] = 0; 245 extent[3] = 0;
246 246
247 regs.r[0] = this->hidden->window_handle; 247 regs.r[0] = this->hidden->window_handle;
248 regs.r[1] = (int) extent; 248 regs.r[1] = (int) extent;
249 _kernel_swi (Wimp_SetExtent, &regs, &regs); 249 _kernel_swi(Wimp_SetExtent, &regs, &regs);
250 250
251 /*TODO: May need to set flag to resize window on next open */ 251 /*TODO: May need to set flag to resize window on next open */
252 } 252 }
253 } 253 }
254 254
255 /* Palette has changed so update palettes used for windows sprites */ 255 /* Palette has changed so update palettes used for windows sprites */
256 256
257 void 257 void
258 WIMP_PaletteChanged (_THIS) 258 WIMP_PaletteChanged(_THIS)
259 { 259 {
260 WIMP_SetupPlotInfo (this); 260 WIMP_SetupPlotInfo(this);
261 } 261 }
262 262
263 /* vi: set ts=4 sw=4 expandtab: */ 263 /* vi: set ts=4 sw=4 expandtab: */