sdl-ios-xcode: src/video/SDL_yuv_sw

annotate src/video/SDL_yuv_sw_c.h @ 3473:7bdc10624cba

This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Nov 2009 07:14:21 +0000
parents	94fb40a4a9a7
children	f7b03b6838cb

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 #include "SDL_video.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 #include "SDL_sysvideo.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	27 /* This is the software implementation of the YUV texture support */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28
3257 94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	29 struct SDL_SW_YUVTexture
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	30 {
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	31 Uint32 format;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	32 Uint32 target_format;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	33 int w, h;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	34 Uint8 *pixels;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	35 int *colortab;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	36 Uint32 *rgb_2_pix;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	37 void (Display1X) (int colortab, Uint32 * rgb_2_pix,
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	38 unsigned char lum, unsigned char cr,
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	39 unsigned char cb, unsigned char out,
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	40 int rows, int cols, int mod);
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	41 void (Display2X) (int colortab, Uint32 * rgb_2_pix,
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	42 unsigned char lum, unsigned char cr,
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	43 unsigned char cb, unsigned char out,
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	44 int rows, int cols, int mod);
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	45
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	46 /* These are just so we don't have to allocate them separately */
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	47 Uint16 pitches[3];
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	48 Uint8 *planes[3];
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	49
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	50 /* This is a temporary surface in case we have to stretch copy */
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	51 SDL_Surface *stretch;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	52 SDL_Surface *display;
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	53 };
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009 Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	54
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	55 typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	57 SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	58 int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	59 int *pitch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	60 int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	61 const void *pixels, int pitch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	62 int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	63 int markDirty, void *pixels, int pitch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	64 void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	65 int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	66 Uint32 target_format, int w, int h, void *pixels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	67 int pitch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	68 void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1643 diff changeset	70 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_yuv_sw_c.h @ 3473:7bdc10624cba