+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2007 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.
- *
- **************************************************************************/
-
-
-/**
- * Texture Image-related functions.
- * \author Brian Paul
- */
-
-#include "main/imports.h"
-#include "main/context.h"
-#include "main/texstore.h"
-#include "main/texformat.h"
-#include "main/enums.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "st_context.h"
-#include "st_cb_teximage.h"
-
-
-
-/*
- * XXX temporary here
- */
-const struct pipe_format_info *
-st_get_format_info(GLuint format)
-{
- static const struct pipe_format_info info[] = {
- {
- PIPE_FORMAT_U_R8_G8_B8_A8, /* format */
- GL_RGBA, /* base_format */
- 8, 8, 8, 8, 0, 0, /* color bits */
- 0, 0, /* depth, stencil */
- 4 /* size in bytes */
- },
- {
- PIPE_FORMAT_U_A8_R8_G8_B8,
- GL_RGBA, /* base_format */
- 8, 8, 8, 8, 0, 0, /* color bits */
- 0, 0, /* depth, stencil */
- 4 /* size in bytes */
- },
- {
- PIPE_FORMAT_U_A1_R5_G5_B5,
- GL_RGBA, /* base_format */
- 5, 5, 5, 1, 0, 0, /* color bits */
- 0, 0, /* depth, stencil */
- 2 /* size in bytes */
- },
- {
- PIPE_FORMAT_U_R5_G6_B5,
- GL_RGBA, /* base_format */
- 5, 6, 5, 0, 0, 0, /* color bits */
- 0, 0, /* depth, stencil */
- 2 /* size in bytes */
- },
- /* XXX lots more */
- {
- PIPE_FORMAT_S8_Z24,
- GL_DEPTH_STENCIL_EXT, /* base_format */
- 0, 0, 0, 0, 0, 0, /* color bits */
- 24, 8, /* depth, stencil */
- 4 /* size in bytes */
- }
- };
- GLuint i;
-
- for (i = 0; i < sizeof(info) / sizeof(info[0]); i++) {
- if (info[i].format == format)
- return info + i;
- }
- return NULL;
-}
-
-
-
-/**
- * Search list of formats for first RGBA format.
- */
-static GLuint
-default_rgba_format(const GLuint formats[], GLuint num)
-{
- GLuint i;
- for (i = 0; i < num; i++) {
- if (formats[i] == PIPE_FORMAT_U_R8_G8_B8_A8 ||
- formats[i] == PIPE_FORMAT_U_A8_R8_G8_B8 ||
- formats[i] == PIPE_FORMAT_U_R5_G6_B5) {
- return formats[i];
- }
- }
- return PIPE_FORMAT_NONE;
-}
-
-
-/**
- * Search list of formats for first depth/Z format.
- */
-static GLuint
-default_depth_format(const GLuint formats[], GLuint num)
-{
- GLuint i;
- for (i = 0; i < num; i++) {
- if (formats[i] == PIPE_FORMAT_U_Z16 ||
- formats[i] == PIPE_FORMAT_U_Z32 ||
- formats[i] == PIPE_FORMAT_S8_Z24) {
- return formats[i];
- }
- }
- return PIPE_FORMAT_NONE;
-}
-
-
-/**
- * Choose the PIPE_FORMAT_ to use for storing a texture image based
- * on the user's internalFormat, format and type parameters.
- * We query the pipe device for a list of formats which it supports
- * and choose from them.
- * If we find a device that needs a more intricate selection mechanism,
- * this function _could_ get pushed down into the pipe device.
- *
- * Note: also used for glRenderbufferStorageEXT()
- *
- * Note: format and type may be GL_NONE (see renderbuffers)
- *
- * \return PIPE_FORMAT_NONE if error/problem.
- */
-GLuint
-st_choose_pipe_format(struct pipe_context *pipe, GLint internalFormat,
- GLenum format, GLenum type)
-{
- const GLuint *supported;
- GLboolean allow[PIPE_FORMAT_COUNT];
- GLuint i, n;
-
- /* query supported formats and fill in bool allow[] table */
- supported = pipe->supported_formats(pipe, &n);
- assert(n < PIPE_FORMAT_COUNT); /* sanity check */
- memset(allow, 0, sizeof(allow));
- for (i = 0; i < n; i++) {
- allow[supported[i]] = 1;
- }
-
- switch (internalFormat) {
- case 4:
- case GL_RGBA:
- case GL_COMPRESSED_RGBA:
- if (format == GL_BGRA) {
- if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) {
- if (allow[PIPE_FORMAT_U_A8_R8_G8_B8])
- return PIPE_FORMAT_U_A8_R8_G8_B8;
- }
- else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
- if (allow[PIPE_FORMAT_U_A4_R4_G4_B4])
- return PIPE_FORMAT_U_A4_R4_G4_B4;
- }
- else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
- if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
- return PIPE_FORMAT_U_A1_R5_G5_B5;
- }
- }
- return default_rgba_format(supported, n);
-
- case 3:
- case GL_RGB:
- case GL_COMPRESSED_RGB:
- if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
- if (allow[PIPE_FORMAT_U_R5_G6_B5])
- return PIPE_FORMAT_U_R5_G6_B5;
- }
- return default_rgba_format(supported, n);
-
- case GL_RGBA8:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
- return default_rgba_format(supported, n);
-
- case GL_RGBA4:
- case GL_RGBA2:
- if (allow[PIPE_FORMAT_U_A4_R4_G4_B4])
- return PIPE_FORMAT_U_A4_R4_G4_B4;
- return default_rgba_format(supported, n);
-
- case GL_RGB5_A1:
- if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
- return PIPE_FORMAT_U_A1_R5_G5_B5;
- return default_rgba_format(supported, n);
-
- case GL_RGB8:
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
- return default_rgba_format(supported, n);
-
- case GL_RGB5:
- case GL_RGB4:
- case GL_R3_G3_B2:
- if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
- return PIPE_FORMAT_U_A1_R5_G5_B5;
- return default_rgba_format(supported, n);
-
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_ALPHA12:
- case GL_ALPHA16:
- case GL_COMPRESSED_ALPHA:
- if (allow[PIPE_FORMAT_U_A8])
- return PIPE_FORMAT_U_A8;
- return default_rgba_format(supported, n);
-
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- case GL_COMPRESSED_LUMINANCE:
- if (allow[PIPE_FORMAT_U_A8])
- return PIPE_FORMAT_U_A8;
- return default_rgba_format(supported, n);
-
- case 2:
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE4_ALPHA4:
- case GL_LUMINANCE6_ALPHA2:
- case GL_LUMINANCE8_ALPHA8:
- case GL_LUMINANCE12_ALPHA4:
- case GL_LUMINANCE12_ALPHA12:
- case GL_LUMINANCE16_ALPHA16:
- case GL_COMPRESSED_LUMINANCE_ALPHA:
- if (allow[PIPE_FORMAT_U_L8_A8])
- return PIPE_FORMAT_U_L8_A8;
- return default_rgba_format(supported, n);
-
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- case GL_COMPRESSED_INTENSITY:
- if (allow[PIPE_FORMAT_U_I8])
- return PIPE_FORMAT_U_I8;
- return default_rgba_format(supported, n);
-
- case GL_YCBCR_MESA:
- if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE) {
- if (allow[PIPE_FORMAT_YCBCR])
- return PIPE_FORMAT_YCBCR;
- }
- else {
- if (allow[PIPE_FORMAT_YCBCR_REV])
- return PIPE_FORMAT_YCBCR_REV;
- }
- return PIPE_FORMAT_NONE;
-
-#if 0
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- return &_mesa_texformat_rgb_fxt1;
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- return &_mesa_texformat_rgba_fxt1;
-
- case GL_RGB_S3TC:
- case GL_RGB4_S3TC:
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- return &_mesa_texformat_rgb_dxt1;
-
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- return &_mesa_texformat_rgba_dxt1;
-
- case GL_RGBA_S3TC:
- case GL_RGBA4_S3TC:
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- return &_mesa_texformat_rgba_dxt3;
-
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- return &_mesa_texformat_rgba_dxt5;
-#endif
-
- case GL_DEPTH_COMPONENT16:
- if (allow[PIPE_FORMAT_U_Z16])
- return PIPE_FORMAT_U_Z16;
- /* fall-through */
- case GL_DEPTH_COMPONENT24:
- if (allow[PIPE_FORMAT_S8_Z24])
- return PIPE_FORMAT_S8_Z24;
- /* fall-through */
- case GL_DEPTH_COMPONENT32:
- if (allow[PIPE_FORMAT_U_Z32])
- return PIPE_FORMAT_U_Z32;
- /* fall-through */
- case GL_DEPTH_COMPONENT:
- return default_depth_format(supported, n);
-
- case GL_STENCIL_INDEX:
- case GL_STENCIL_INDEX1_EXT:
- case GL_STENCIL_INDEX4_EXT:
- case GL_STENCIL_INDEX8_EXT:
- case GL_STENCIL_INDEX16_EXT:
- if (allow[PIPE_FORMAT_U_S8])
- return PIPE_FORMAT_U_S8;
- if (allow[PIPE_FORMAT_S8_Z24])
- return PIPE_FORMAT_S8_Z24;
- return PIPE_FORMAT_NONE;
-
- case GL_DEPTH_STENCIL_EXT:
- case GL_DEPTH24_STENCIL8_EXT:
- if (allow[PIPE_FORMAT_S8_Z24])
- return PIPE_FORMAT_S8_Z24;
- return PIPE_FORMAT_NONE;
-
- default:
- return PIPE_FORMAT_NONE;
- }
-}
-
-
-
-/* It works out that this function is fine for all the supported
- * hardware. However, there is still a need to map the formats onto
- * hardware descriptors.
- */
-/* Note that the i915 can actually support many more formats than
- * these if we take the step of simply swizzling the colors
- * immediately after sampling...
- */
-const struct gl_texture_format *
-st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
- GLenum format, GLenum type)
-{
-#if 0
- struct intel_context *intel = intel_context(ctx);
- const GLboolean do32bpt = (intel->intelScreen->front.cpp == 4);
-#else
- const GLboolean do32bpt = 1;
-#endif
-
- switch (internalFormat) {
- case 4:
- case GL_RGBA:
- case GL_COMPRESSED_RGBA:
- if (format == GL_BGRA) {
- if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) {
- return &_mesa_texformat_argb8888;
- }
- else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
- return &_mesa_texformat_argb4444;
- }
- else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
- return &_mesa_texformat_argb1555;
- }
- }
- return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
-
- case 3:
- case GL_RGB:
- case GL_COMPRESSED_RGB:
- if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
- return &_mesa_texformat_rgb565;
- }
- return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565;
-
- case GL_RGBA8:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
- return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
-
- case GL_RGBA4:
- case GL_RGBA2:
- return &_mesa_texformat_argb4444;
-
- case GL_RGB5_A1:
- return &_mesa_texformat_argb1555;
-
- case GL_RGB8:
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
- return &_mesa_texformat_argb8888;
-
- case GL_RGB5:
- case GL_RGB4:
- case GL_R3_G3_B2:
- return &_mesa_texformat_rgb565;
-
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_ALPHA12:
- case GL_ALPHA16:
- case GL_COMPRESSED_ALPHA:
- return &_mesa_texformat_a8;
-
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- case GL_COMPRESSED_LUMINANCE:
- return &_mesa_texformat_l8;
-
- case 2:
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE4_ALPHA4:
- case GL_LUMINANCE6_ALPHA2:
- case GL_LUMINANCE8_ALPHA8:
- case GL_LUMINANCE12_ALPHA4:
- case GL_LUMINANCE12_ALPHA12:
- case GL_LUMINANCE16_ALPHA16:
- case GL_COMPRESSED_LUMINANCE_ALPHA:
- return &_mesa_texformat_al88;
-
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- case GL_COMPRESSED_INTENSITY:
- return &_mesa_texformat_i8;
-
- case GL_YCBCR_MESA:
- if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE)
- return &_mesa_texformat_ycbcr;
- else
- return &_mesa_texformat_ycbcr_rev;
-
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- return &_mesa_texformat_rgb_fxt1;
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- return &_mesa_texformat_rgba_fxt1;
-
- case GL_RGB_S3TC:
- case GL_RGB4_S3TC:
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- return &_mesa_texformat_rgb_dxt1;
-
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- return &_mesa_texformat_rgba_dxt1;
-
- case GL_RGBA_S3TC:
- case GL_RGBA4_S3TC:
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- return &_mesa_texformat_rgba_dxt3;
-
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- return &_mesa_texformat_rgba_dxt5;
-
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT16:
- case GL_DEPTH_COMPONENT24:
- case GL_DEPTH_COMPONENT32:
- return &_mesa_texformat_z16;
-
- case GL_DEPTH_STENCIL_EXT:
- case GL_DEPTH24_STENCIL8_EXT:
- return &_mesa_texformat_z24_s8;
-
- default:
- fprintf(stderr, "unexpected texture format %s in %s\n",
- _mesa_lookup_enum_by_nr(internalFormat), __FUNCTION__);
- return NULL;
- }
-
- return NULL; /* never get here */
-}
+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2007 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_TEXIMAGE_H
-#define ST_CB_TEXIMAGE_H
-
-
-struct pipe_format_info
-{
- GLuint format;
- GLenum base_format;
- GLubyte red_bits;
- GLubyte green_bits;
- GLubyte blue_bits;
- GLubyte alpha_bits;
- GLubyte luminance_bits;
- GLubyte intensity_bits;
- GLubyte depth_bits;
- GLubyte stencil_bits;
- GLubyte size; /**< in bytes */
-};
-
-
-extern const struct pipe_format_info *
-st_get_format_info(GLuint format);
-
-
-extern GLuint
-st_choose_pipe_format(struct pipe_context *pipe, GLint internalFormat,
- GLenum format, GLenum type);
-
-
-extern const struct gl_texture_format *
-st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
- GLenum format, GLenum type);
-
-
-#endif /* ST_CB_TEXIMAGE_H */
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 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.
+ *
+ **************************************************************************/
+
+
+/**
+ * Texture Image-related functions.
+ * \author Brian Paul
+ */
+
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/texstore.h"
+#include "main/texformat.h"
+#include "main/enums.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "st_context.h"
+#include "st_cb_teximage.h"
+
+
+
+/*
+ * XXX temporary here
+ */
+const struct pipe_format_info *
+st_get_format_info(GLuint format)
+{
+ static const struct pipe_format_info info[] = {
+ {
+ PIPE_FORMAT_U_R8_G8_B8_A8, /* format */
+ GL_RGBA, /* base_format */
+ 8, 8, 8, 8, 0, 0, /* color bits */
+ 0, 0, /* depth, stencil */
+ 4 /* size in bytes */
+ },
+ {
+ PIPE_FORMAT_U_A8_R8_G8_B8,
+ GL_RGBA, /* base_format */
+ 8, 8, 8, 8, 0, 0, /* color bits */
+ 0, 0, /* depth, stencil */
+ 4 /* size in bytes */
+ },
+ {
+ PIPE_FORMAT_U_A1_R5_G5_B5,
+ GL_RGBA, /* base_format */
+ 5, 5, 5, 1, 0, 0, /* color bits */
+ 0, 0, /* depth, stencil */
+ 2 /* size in bytes */
+ },
+ {
+ PIPE_FORMAT_U_R5_G6_B5,
+ GL_RGBA, /* base_format */
+ 5, 6, 5, 0, 0, 0, /* color bits */
+ 0, 0, /* depth, stencil */
+ 2 /* size in bytes */
+ },
+ /* XXX lots more */
+ {
+ PIPE_FORMAT_S8_Z24,
+ GL_DEPTH_STENCIL_EXT, /* base_format */
+ 0, 0, 0, 0, 0, 0, /* color bits */
+ 24, 8, /* depth, stencil */
+ 4 /* size in bytes */
+ }
+ };
+ GLuint i;
+
+ for (i = 0; i < sizeof(info) / sizeof(info[0]); i++) {
+ if (info[i].format == format)
+ return info + i;
+ }
+ return NULL;
+}
+
+
+
+/**
+ * Search list of formats for first RGBA format.
+ */
+static GLuint
+default_rgba_format(const GLuint formats[], GLuint num)
+{
+ GLuint i;
+ for (i = 0; i < num; i++) {
+ if (formats[i] == PIPE_FORMAT_U_R8_G8_B8_A8 ||
+ formats[i] == PIPE_FORMAT_U_A8_R8_G8_B8 ||
+ formats[i] == PIPE_FORMAT_U_R5_G6_B5) {
+ return formats[i];
+ }
+ }
+ return PIPE_FORMAT_NONE;
+}
+
+
+/**
+ * Search list of formats for first depth/Z format.
+ */
+static GLuint
+default_depth_format(const GLuint formats[], GLuint num)
+{
+ GLuint i;
+ for (i = 0; i < num; i++) {
+ if (formats[i] == PIPE_FORMAT_U_Z16 ||
+ formats[i] == PIPE_FORMAT_U_Z32 ||
+ formats[i] == PIPE_FORMAT_S8_Z24) {
+ return formats[i];
+ }
+ }
+ return PIPE_FORMAT_NONE;
+}
+
+
+/**
+ * Choose the PIPE_FORMAT_ to use for storing a texture image based
+ * on the user's internalFormat, format and type parameters.
+ * We query the pipe device for a list of formats which it supports
+ * and choose from them.
+ * If we find a device that needs a more intricate selection mechanism,
+ * this function _could_ get pushed down into the pipe device.
+ *
+ * Note: also used for glRenderbufferStorageEXT()
+ *
+ * Note: format and type may be GL_NONE (see renderbuffers)
+ *
+ * \return PIPE_FORMAT_NONE if error/problem.
+ */
+GLuint
+st_choose_pipe_format(struct pipe_context *pipe, GLint internalFormat,
+ GLenum format, GLenum type)
+{
+ const GLuint *supported;
+ GLboolean allow[PIPE_FORMAT_COUNT];
+ GLuint i, n;
+
+ /* query supported formats and fill in bool allow[] table */
+ supported = pipe->supported_formats(pipe, &n);
+ assert(n < PIPE_FORMAT_COUNT); /* sanity check */
+ memset(allow, 0, sizeof(allow));
+ for (i = 0; i < n; i++) {
+ allow[supported[i]] = 1;
+ }
+
+ switch (internalFormat) {
+ case 4:
+ case GL_RGBA:
+ case GL_COMPRESSED_RGBA:
+ if (format == GL_BGRA) {
+ if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) {
+ if (allow[PIPE_FORMAT_U_A8_R8_G8_B8])
+ return PIPE_FORMAT_U_A8_R8_G8_B8;
+ }
+ else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ if (allow[PIPE_FORMAT_U_A4_R4_G4_B4])
+ return PIPE_FORMAT_U_A4_R4_G4_B4;
+ }
+ else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
+ return PIPE_FORMAT_U_A1_R5_G5_B5;
+ }
+ }
+ return default_rgba_format(supported, n);
+
+ case 3:
+ case GL_RGB:
+ case GL_COMPRESSED_RGB:
+ if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
+ if (allow[PIPE_FORMAT_U_R5_G6_B5])
+ return PIPE_FORMAT_U_R5_G6_B5;
+ }
+ return default_rgba_format(supported, n);
+
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return default_rgba_format(supported, n);
+
+ case GL_RGBA4:
+ case GL_RGBA2:
+ if (allow[PIPE_FORMAT_U_A4_R4_G4_B4])
+ return PIPE_FORMAT_U_A4_R4_G4_B4;
+ return default_rgba_format(supported, n);
+
+ case GL_RGB5_A1:
+ if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
+ return PIPE_FORMAT_U_A1_R5_G5_B5;
+ return default_rgba_format(supported, n);
+
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return default_rgba_format(supported, n);
+
+ case GL_RGB5:
+ case GL_RGB4:
+ case GL_R3_G3_B2:
+ if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
+ return PIPE_FORMAT_U_A1_R5_G5_B5;
+ return default_rgba_format(supported, n);
+
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case GL_COMPRESSED_ALPHA:
+ if (allow[PIPE_FORMAT_U_A8])
+ return PIPE_FORMAT_U_A8;
+ return default_rgba_format(supported, n);
+
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case GL_COMPRESSED_LUMINANCE:
+ if (allow[PIPE_FORMAT_U_A8])
+ return PIPE_FORMAT_U_A8;
+ return default_rgba_format(supported, n);
+
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ if (allow[PIPE_FORMAT_U_L8_A8])
+ return PIPE_FORMAT_U_L8_A8;
+ return default_rgba_format(supported, n);
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_COMPRESSED_INTENSITY:
+ if (allow[PIPE_FORMAT_U_I8])
+ return PIPE_FORMAT_U_I8;
+ return default_rgba_format(supported, n);
+
+ case GL_YCBCR_MESA:
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE) {
+ if (allow[PIPE_FORMAT_YCBCR])
+ return PIPE_FORMAT_YCBCR;
+ }
+ else {
+ if (allow[PIPE_FORMAT_YCBCR_REV])
+ return PIPE_FORMAT_YCBCR_REV;
+ }
+ return PIPE_FORMAT_NONE;
+
+#if 0
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return &_mesa_texformat_rgb_fxt1;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return &_mesa_texformat_rgba_fxt1;
+
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgb_dxt1;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgba_dxt1;
+
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ return &_mesa_texformat_rgba_dxt3;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return &_mesa_texformat_rgba_dxt5;
+#endif
+
+ case GL_DEPTH_COMPONENT16:
+ if (allow[PIPE_FORMAT_U_Z16])
+ return PIPE_FORMAT_U_Z16;
+ /* fall-through */
+ case GL_DEPTH_COMPONENT24:
+ if (allow[PIPE_FORMAT_S8_Z24])
+ return PIPE_FORMAT_S8_Z24;
+ /* fall-through */
+ case GL_DEPTH_COMPONENT32:
+ if (allow[PIPE_FORMAT_U_Z32])
+ return PIPE_FORMAT_U_Z32;
+ /* fall-through */
+ case GL_DEPTH_COMPONENT:
+ return default_depth_format(supported, n);
+
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1_EXT:
+ case GL_STENCIL_INDEX4_EXT:
+ case GL_STENCIL_INDEX8_EXT:
+ case GL_STENCIL_INDEX16_EXT:
+ if (allow[PIPE_FORMAT_U_S8])
+ return PIPE_FORMAT_U_S8;
+ if (allow[PIPE_FORMAT_S8_Z24])
+ return PIPE_FORMAT_S8_Z24;
+ return PIPE_FORMAT_NONE;
+
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ if (allow[PIPE_FORMAT_S8_Z24])
+ return PIPE_FORMAT_S8_Z24;
+ return PIPE_FORMAT_NONE;
+
+ default:
+ return PIPE_FORMAT_NONE;
+ }
+}
+
+
+
+/* It works out that this function is fine for all the supported
+ * hardware. However, there is still a need to map the formats onto
+ * hardware descriptors.
+ */
+/* Note that the i915 can actually support many more formats than
+ * these if we take the step of simply swizzling the colors
+ * immediately after sampling...
+ */
+const struct gl_texture_format *
+st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
+ GLenum format, GLenum type)
+{
+#if 0
+ struct intel_context *intel = intel_context(ctx);
+ const GLboolean do32bpt = (intel->intelScreen->front.cpp == 4);
+#else
+ const GLboolean do32bpt = 1;
+#endif
+
+ switch (internalFormat) {
+ case 4:
+ case GL_RGBA:
+ case GL_COMPRESSED_RGBA:
+ if (format == GL_BGRA) {
+ if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) {
+ return &_mesa_texformat_argb8888;
+ }
+ else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ return &_mesa_texformat_argb4444;
+ }
+ else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ return &_mesa_texformat_argb1555;
+ }
+ }
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
+
+ case 3:
+ case GL_RGB:
+ case GL_COMPRESSED_RGB:
+ if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
+ return &_mesa_texformat_rgb565;
+ }
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565;
+
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
+
+ case GL_RGBA4:
+ case GL_RGBA2:
+ return &_mesa_texformat_argb4444;
+
+ case GL_RGB5_A1:
+ return &_mesa_texformat_argb1555;
+
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return &_mesa_texformat_argb8888;
+
+ case GL_RGB5:
+ case GL_RGB4:
+ case GL_R3_G3_B2:
+ return &_mesa_texformat_rgb565;
+
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case GL_COMPRESSED_ALPHA:
+ return &_mesa_texformat_a8;
+
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case GL_COMPRESSED_LUMINANCE:
+ return &_mesa_texformat_l8;
+
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return &_mesa_texformat_al88;
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_COMPRESSED_INTENSITY:
+ return &_mesa_texformat_i8;
+
+ case GL_YCBCR_MESA:
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE)
+ return &_mesa_texformat_ycbcr;
+ else
+ return &_mesa_texformat_ycbcr_rev;
+
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return &_mesa_texformat_rgb_fxt1;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return &_mesa_texformat_rgba_fxt1;
+
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgb_dxt1;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgba_dxt1;
+
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ return &_mesa_texformat_rgba_dxt3;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return &_mesa_texformat_rgba_dxt5;
+
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return &_mesa_texformat_z16;
+
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return &_mesa_texformat_z24_s8;
+
+ default:
+ fprintf(stderr, "unexpected texture format %s in %s\n",
+ _mesa_lookup_enum_by_nr(internalFormat), __FUNCTION__);
+ return NULL;
+ }
+
+ return NULL; /* never get here */
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 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_TEXIMAGE_H
+#define ST_CB_TEXIMAGE_H
+
+
+struct pipe_format_info
+{
+ GLuint format;
+ GLenum base_format;
+ GLubyte red_bits;
+ GLubyte green_bits;
+ GLubyte blue_bits;
+ GLubyte alpha_bits;
+ GLubyte luminance_bits;
+ GLubyte intensity_bits;
+ GLubyte depth_bits;
+ GLubyte stencil_bits;
+ GLubyte size; /**< in bytes */
+};
+
+
+extern const struct pipe_format_info *
+st_get_format_info(GLuint format);
+
+
+extern GLuint
+st_choose_pipe_format(struct pipe_context *pipe, GLint internalFormat,
+ GLenum format, GLenum type);
+
+
+extern const struct gl_texture_format *
+st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
+ GLenum format, GLenum type);
+
+
+#endif /* ST_CB_TEXIMAGE_H */
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