diff options
| -rw-r--r-- | src/mesa/SConscript | 1 | ||||
| -rw-r--r-- | src/mesa/sources.mak | 1 | ||||
| -rw-r--r-- | src/mesa/state_tracker/st_cb_get.c | 97 | ||||
| -rw-r--r-- | src/mesa/state_tracker/st_cb_get.h | 37 | ||||
| -rw-r--r-- | src/mesa/state_tracker/st_context.c | 2 |
5 files changed, 138 insertions, 0 deletions
diff --git a/src/mesa/SConscript b/src/mesa/SConscript index 2c74dc7dd07..af8dfcb4930 100644 --- a/src/mesa/SConscript +++ b/src/mesa/SConscript @@ -153,6 +153,7 @@ if env['platform'] != 'winddk': 'state_tracker/st_cb_flush.c', 'state_tracker/st_cb_drawpixels.c', 'state_tracker/st_cb_fbo.c', + 'state_tracker/st_cb_get.c', 'state_tracker/st_cb_feedback.c', 'state_tracker/st_cb_program.c', 'state_tracker/st_cb_queryobj.c', diff --git a/src/mesa/sources.mak b/src/mesa/sources.mak index 0e0e10979b6..14fd8597a8f 100644 --- a/src/mesa/sources.mak +++ b/src/mesa/sources.mak @@ -187,6 +187,7 @@ STATETRACKER_SOURCES = \ state_tracker/st_cb_bufferobjects.c \ state_tracker/st_cb_clear.c \ state_tracker/st_cb_flush.c \ + state_tracker/st_cb_get.c \ state_tracker/st_cb_drawpixels.c \ state_tracker/st_cb_fbo.c \ state_tracker/st_cb_feedback.c \ diff --git a/src/mesa/state_tracker/st_cb_get.c b/src/mesa/state_tracker/st_cb_get.c new file mode 100644 index 00000000000..e7d7f03bc9b --- /dev/null +++ b/src/mesa/state_tracker/st_cb_get.c @@ -0,0 +1,97 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * glGet functions + * + * \author Brian Paul + */ + +#include "main/imports.h" +#include "main/context.h" + +#include "pipe/p_defines.h" + +#include "st_cb_fbo.h" +#include "st_cb_get.h" + + + +/** + * Examine the current color read buffer format to determine + * which GL pixel format/type combo is the best match. + */ +static void +get_preferred_read_format_type(GLcontext *ctx, GLint *format, GLint *type) +{ + struct gl_framebuffer *fb = ctx->ReadBuffer; + struct st_renderbuffer *strb = st_renderbuffer(fb->_ColorReadBuffer); + + /* defaults */ + *format = ctx->Const.ColorReadFormat; + *type = ctx->Const.ColorReadType; + + if (strb) { + /* XXX could add more cases here... */ + if (strb->format == PIPE_FORMAT_A8R8G8B8_UNORM) { + *format = GL_BGRA; + if (_mesa_little_endian()) + *type = GL_UNSIGNED_INT_8_8_8_8_REV; + else + *type = GL_UNSIGNED_INT_8_8_8_8; + } + } +} + + +/** + * We only intercept the OES preferred ReadPixels format/type. + * Everything else goes to the default _mesa_GetIntegerv. + */ +static GLboolean +st_GetIntegerv(GLcontext *ctx, GLenum pname, GLint *params) +{ + GLint dummy; + + switch (pname) { + case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: + get_preferred_read_format_type(ctx, &dummy, params); + return GL_TRUE; + case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: + get_preferred_read_format_type(ctx, params, &dummy); + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +void st_init_get_functions(struct dd_function_table *functions) +{ + functions->GetIntegerv = st_GetIntegerv; +} diff --git a/src/mesa/state_tracker/st_cb_get.h b/src/mesa/state_tracker/st_cb_get.h new file mode 100644 index 00000000000..8e9f3e93060 --- /dev/null +++ b/src/mesa/state_tracker/st_cb_get.h @@ -0,0 +1,37 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef ST_CB_GET_H +#define ST_CB_GET_H + + +extern void +st_init_get_functions(struct dd_function_table *functions); + + +#endif diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c index 3b126e6c8f6..83b0be06daa 100644 --- a/src/mesa/state_tracker/st_context.c +++ b/src/mesa/state_tracker/st_context.c @@ -49,6 +49,7 @@ #include "st_cb_drawtex.h" #endif #include "st_cb_fbo.h" +#include "st_cb_get.h" #if FEATURE_feedback #include "st_cb_feedback.h" #endif @@ -293,6 +294,7 @@ void st_init_driver_functions(struct dd_function_table *functions) st_init_rasterpos_functions(functions); #endif st_init_fbo_functions(functions); + st_init_get_functions(functions); #if FEATURE_feedback st_init_feedback_functions(functions); #endif |