+++ /dev/null
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
- * Copyright (C) 2009 VMware, Inc. 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, sublicense,
- * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL 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.
- */
-
-
-/**
- * \file teximage.c
- * Texture image-related functions.
- */
-
-#include <precomp.h>
-
-/**
- * State changes which we care about for glCopyTex[Sub]Image() calls.
- * In particular, we care about pixel transfer state and buffer state
- * (such as glReadBuffer to make sure we read from the right renderbuffer).
- */
-#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
-
-
-
-/**
- * Return the simple base format for a given internal texture format.
- * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
- *
- * \param ctx GL context.
- * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
- *
- * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
- * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
- *
- * This is the format which is used during texture application (i.e. the
- * texture format and env mode determine the arithmetic used.
- *
- * XXX this could be static
- */
-GLint
-_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
-{
- switch (internalFormat) {
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_ALPHA12:
- case GL_ALPHA16:
- return GL_ALPHA;
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- return GL_LUMINANCE;
- 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:
- return GL_LUMINANCE_ALPHA;
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- return GL_INTENSITY;
- case 3:
- case GL_RGB:
- case GL_R3_G3_B2:
- case GL_RGB4:
- case GL_RGB5:
- case GL_RGB8:
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
- return GL_RGB;
- case 4:
- case GL_RGBA:
- case GL_RGBA2:
- case GL_RGBA4:
- case GL_RGB5_A1:
- case GL_RGBA8:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
-
- if (ctx->Extensions.MESA_ycbcr_texture) {
- if (internalFormat == GL_YCBCR_MESA)
- return GL_YCBCR_MESA;
- }
-
- if (ctx->VersionMajor >= 3 ||
- ctx->Extensions.EXT_texture_integer) {
- switch (internalFormat) {
- case GL_RGBA8UI_EXT:
- case GL_RGBA16UI_EXT:
- case GL_RGBA32UI_EXT:
- case GL_RGBA8I_EXT:
- case GL_RGBA16I_EXT:
- case GL_RGBA32I_EXT:
- case GL_RGB10_A2UI:
- return GL_RGBA;
- case GL_RGB8UI_EXT:
- case GL_RGB16UI_EXT:
- case GL_RGB32UI_EXT:
- case GL_RGB8I_EXT:
- case GL_RGB16I_EXT:
- case GL_RGB32I_EXT:
- return GL_RGB;
- }
- }
-
- if (ctx->Extensions.EXT_texture_integer) {
- switch (internalFormat) {
- case GL_ALPHA8UI_EXT:
- case GL_ALPHA16UI_EXT:
- case GL_ALPHA32UI_EXT:
- case GL_ALPHA8I_EXT:
- case GL_ALPHA16I_EXT:
- case GL_ALPHA32I_EXT:
- return GL_ALPHA;
- case GL_INTENSITY8UI_EXT:
- case GL_INTENSITY16UI_EXT:
- case GL_INTENSITY32UI_EXT:
- case GL_INTENSITY8I_EXT:
- case GL_INTENSITY16I_EXT:
- case GL_INTENSITY32I_EXT:
- return GL_INTENSITY;
- case GL_LUMINANCE8UI_EXT:
- case GL_LUMINANCE16UI_EXT:
- case GL_LUMINANCE32UI_EXT:
- case GL_LUMINANCE8I_EXT:
- case GL_LUMINANCE16I_EXT:
- case GL_LUMINANCE32I_EXT:
- return GL_LUMINANCE;
- case GL_LUMINANCE_ALPHA8UI_EXT:
- case GL_LUMINANCE_ALPHA16UI_EXT:
- case GL_LUMINANCE_ALPHA32UI_EXT:
- case GL_LUMINANCE_ALPHA8I_EXT:
- case GL_LUMINANCE_ALPHA16I_EXT:
- case GL_LUMINANCE_ALPHA32I_EXT:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- return -1; /* error */
-}
-
-
-/**
- * Is the given texture format a generic compressed format?
- */
-
-
-/**
- * For cube map faces, return a face index in [0,5].
- * For other targets return 0;
- */
-GLuint
-_mesa_tex_target_to_face(GLenum target)
-{
- if (_mesa_is_cube_face(target))
- return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
- else
- return 0;
-}
-
-
-
-/**
- * Install gl_texture_image in a gl_texture_object according to the target
- * and level parameters.
- *
- * \param tObj texture object.
- * \param target texture target.
- * \param level image level.
- * \param texImage texture image.
- */
-static void
-set_tex_image(struct gl_texture_object *tObj,
- GLenum target, GLint level,
- struct gl_texture_image *texImage)
-{
- const GLuint face = _mesa_tex_target_to_face(target);
-
- ASSERT(tObj);
- ASSERT(texImage);
-
- tObj->Image[face][level] = texImage;
-
- /* Set the 'back' pointer */
- texImage->TexObject = tObj;
- texImage->Level = level;
- texImage->Face = face;
-}
-
-
-/**
- * Allocate a texture image structure.
- *
- * Called via ctx->Driver.NewTextureImage() unless overriden by a device
- * driver.
- *
- * \return a pointer to gl_texture_image struct with all fields initialized to
- * zero.
- */
-struct gl_texture_image *
-_mesa_new_texture_image( struct gl_context *ctx )
-{
- (void) ctx;
- return CALLOC_STRUCT(gl_texture_image);
-}
-
-
-/**
- * Free a gl_texture_image and associated data.
- * This function is a fallback called via ctx->Driver.DeleteTextureImage().
- *
- * \param texImage texture image.
- *
- * Free the texture image structure and the associated image data.
- */
-void
-_mesa_delete_texture_image(struct gl_context *ctx,
- struct gl_texture_image *texImage)
-{
- /* Free texImage->Data and/or any other driver-specific texture
- * image storage.
- */
- ASSERT(ctx->Driver.FreeTextureImageBuffer);
- ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
- free(texImage);
-}
-
-
-/**
- * Test if a target is a proxy target.
- *
- * \param target texture target.
- *
- * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
- */
-GLboolean
-_mesa_is_proxy_texture(GLenum target)
-{
- /*
- * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
- * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
- */
- assert(NUM_TEXTURE_TARGETS == 7 + 2);
-
- return (target == GL_PROXY_TEXTURE_1D ||
- target == GL_PROXY_TEXTURE_2D ||
- target == GL_PROXY_TEXTURE_CUBE_MAP_ARB);
-}
-
-
-/**
- * Return the proxy target which corresponds to the given texture target
- */
-static GLenum
-get_proxy_target(GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- return GL_PROXY_TEXTURE_1D;
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return GL_PROXY_TEXTURE_2D;
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
- case GL_TEXTURE_CUBE_MAP_ARB:
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
- default:
- _mesa_problem(NULL, "unexpected target in get_proxy_target()");
- return 0;
- }
-}
-
-
-/**
- * Get the texture object that corresponds to the target of the given
- * texture unit. The target should have already been checked for validity.
- *
- * \param ctx GL context.
- * \param texUnit texture unit.
- * \param target texture target.
- *
- * \return pointer to the texture object on success, or NULL on failure.
- */
-struct gl_texture_object *
-_mesa_select_tex_object(struct gl_context *ctx,
- GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- return ctx->Texture.Unit.CurrentTex[TEXTURE_1D_INDEX];
- case GL_PROXY_TEXTURE_1D:
- return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
- case GL_TEXTURE_2D:
- return ctx->Texture.Unit.CurrentTex[TEXTURE_2D_INDEX];
- case GL_PROXY_TEXTURE_2D:
- return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
- default:
- _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
- return NULL;
- }
-}
-
-
-/**
- * Get a texture image pointer from a texture object, given a texture
- * target and mipmap level. The target and level parameters should
- * have already been error-checked.
- *
- * \param ctx GL context.
- * \param texObj texture unit.
- * \param target texture target.
- * \param level image level.
- *
- * \return pointer to the texture image structure, or NULL on failure.
- */
-struct gl_texture_image *
-_mesa_select_tex_image(struct gl_context *ctx,
- const struct gl_texture_object *texObj,
- GLenum target, GLint level)
-{
- const GLuint face = _mesa_tex_target_to_face(target);
-
- ASSERT(texObj);
- ASSERT(level >= 0);
- ASSERT(level < MAX_TEXTURE_LEVELS);
-
- return texObj->Image[face][level];
-}
-
-
-/**
- * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
- * it and install it. Only return NULL if passed a bad parameter or run
- * out of memory.
- */
-struct gl_texture_image *
-_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
- GLenum target, GLint level)
-{
- struct gl_texture_image *texImage;
-
- if (!texObj)
- return NULL;
-
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
- if (!texImage) {
- texImage = ctx->Driver.NewTextureImage(ctx);
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
- return NULL;
- }
-
- set_tex_image(texObj, target, level, texImage);
- }
-
- return texImage;
-}
-
-
-/**
- * Return pointer to the specified proxy texture image.
- * Note that proxy textures are per-context, not per-texture unit.
- * \return pointer to texture image or NULL if invalid target, invalid
- * level, or out of memory.
- */
-struct gl_texture_image *
-_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
-{
- struct gl_texture_image *texImage;
- GLuint texIndex;
-
- if (level < 0 )
- return NULL;
-
- switch (target) {
- case GL_PROXY_TEXTURE_1D:
- if (level >= ctx->Const.MaxTextureLevels)
- return NULL;
- texIndex = TEXTURE_1D_INDEX;
- break;
- case GL_PROXY_TEXTURE_2D:
- if (level >= ctx->Const.MaxTextureLevels)
- return NULL;
- texIndex = TEXTURE_2D_INDEX;
- break;
- case GL_PROXY_TEXTURE_CUBE_MAP:
- if (level >= ctx->Const.MaxCubeTextureLevels)
- return NULL;
- texIndex = TEXTURE_CUBE_INDEX;
- break;
- default:
- return NULL;
- }
-
- texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
- if (!texImage) {
- texImage = ctx->Driver.NewTextureImage(ctx);
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
- return NULL;
- }
- ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
- /* Set the 'back' pointer */
- texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
- }
- return texImage;
-}
-
-
-/**
- * Get the maximum number of allowed mipmap levels.
- *
- * \param ctx GL context.
- * \param target texture target.
- *
- * \return the maximum number of allowed mipmap levels for the given
- * texture target, or zero if passed a bad target.
- *
- * \sa gl_constants.
- */
-GLint
-_mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return ctx->Const.MaxTextureLevels;
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- return ctx->Extensions.ARB_texture_cube_map
- ? ctx->Const.MaxCubeTextureLevels : 0;
- default:
- return 0; /* bad target */
- }
-}
-
-
-/**
- * Return number of dimensions per mipmap level for the given texture target.
- */
-GLint
-_mesa_get_texture_dimensions(GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- return 1;
- case GL_TEXTURE_2D:
- case GL_TEXTURE_CUBE_MAP:
- case GL_PROXY_TEXTURE_2D:
- case GL_PROXY_TEXTURE_CUBE_MAP:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- return 2;
- default:
- _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
- target);
- return 2;
- }
-}
-
-
-
-
-#if 000 /* not used anymore */
-/*
- * glTexImage[123]D can accept a NULL image pointer. In this case we
- * create a texture image with unspecified image contents per the OpenGL
- * spec.
- */
-static GLubyte *
-make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
-{
- const GLint components = _mesa_components_in_format(format);
- const GLint numPixels = width * height * depth;
- GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
-
-#ifdef DEBUG
- /*
- * Let's see if anyone finds this. If glTexImage2D() is called with
- * a NULL image pointer then load the texture image with something
- * interesting instead of leaving it indeterminate.
- */
- if (data) {
- static const char message[8][32] = {
- " X X XXXXX XXX X ",
- " XX XX X X X X X ",
- " X X X X X X X ",
- " X X XXXX XXX XXXXX ",
- " X X X X X X ",
- " X X X X X X X ",
- " X X XXXXX XXX X X ",
- " "
- };
-
- GLubyte *imgPtr = data;
- GLint h, i, j, k;
- for (h = 0; h < depth; h++) {
- for (i = 0; i < height; i++) {
- GLint srcRow = 7 - (i % 8);
- for (j = 0; j < width; j++) {
- GLint srcCol = j % 32;
- GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
- for (k = 0; k < components; k++) {
- *imgPtr++ = texel;
- }
- }
- }
- }
- }
-#endif
-
- return data;
-}
-#endif
-
-
-
-/**
- * Set the size and format-related fields of a gl_texture_image struct
- * to zero. This is used when a proxy texture test fails.
- */
-static void
-clear_teximage_fields(struct gl_texture_image *img)
-{
- ASSERT(img);
- img->_BaseFormat = 0;
- img->InternalFormat = 0;
- img->Border = 0;
- img->Width = 0;
- img->Height = 0;
- img->Depth = 0;
- img->Width2 = 0;
- img->Height2 = 0;
- img->Depth2 = 0;
- img->WidthLog2 = 0;
- img->HeightLog2 = 0;
- img->DepthLog2 = 0;
- img->TexFormat = MESA_FORMAT_NONE;
-}
-
-
-/**
- * Initialize basic fields of the gl_texture_image struct.
- *
- * \param ctx GL context.
- * \param img texture image structure to be initialized.
- * \param width image width.
- * \param height image height.
- * \param depth image depth.
- * \param border image border.
- * \param internalFormat internal format.
- * \param format the actual hardware format (one of MESA_FORMAT_*)
- *
- * Fills in the fields of \p img with the given information.
- * Note: width, height and depth include the border.
- */
-void
-_mesa_init_teximage_fields(struct gl_context *ctx,
- struct gl_texture_image *img,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum internalFormat,
- gl_format format)
-{
- GLenum target;
- ASSERT(img);
- ASSERT(width >= 0);
- ASSERT(height >= 0);
- ASSERT(depth >= 0);
-
- target = img->TexObject->Target;
- img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
- ASSERT(img->_BaseFormat > 0);
- img->InternalFormat = internalFormat;
- img->Border = border;
- img->Width = width;
- img->Height = height;
- img->Depth = depth;
-
- img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
- img->WidthLog2 = _mesa_logbase2(img->Width2);
-
- switch(target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- if (height == 0)
- img->Height2 = 0;
- else
- img->Height2 = 1;
- img->HeightLog2 = 0;
- if (depth == 0)
- img->Depth2 = 0;
- else
- img->Depth2 = 1;
- img->DepthLog2 = 0;
- break;
- case GL_TEXTURE_2D:
- case GL_TEXTURE_CUBE_MAP:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- case GL_PROXY_TEXTURE_2D:
- case GL_PROXY_TEXTURE_CUBE_MAP:
- img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
- img->HeightLog2 = _mesa_logbase2(img->Height2);
- if (depth == 0)
- img->Depth2 = 0;
- else
- img->Depth2 = 1;
- img->DepthLog2 = 0;
- break;
- default:
- _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
- target);
- }
-
- img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
- img->TexFormat = format;
-}
-
-
-/**
- * Free and clear fields of the gl_texture_image struct.
- *
- * \param ctx GL context.
- * \param texImage texture image structure to be cleared.
- *
- * After the call, \p texImage will have no data associated with it. Its
- * fields are cleared so that its parent object will test incomplete.
- */
-void
-_mesa_clear_texture_image(struct gl_context *ctx,
- struct gl_texture_image *texImage)
-{
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
- clear_teximage_fields(texImage);
-}
-
-
-/**
- * This is the fallback for Driver.TestProxyTexImage(). Test the texture
- * level, width, height and depth against the ctx->Const limits for textures.
- *
- * A hardware driver might override this function if, for example, the
- * max 3D texture size is 512x512x64 (i.e. not a cube).
- *
- * Note that width, height, depth == 0 is not an error. However, a
- * texture with zero width/height/depth will be considered "incomplete"
- * and texturing will effectively be disabled.
- *
- * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
- * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
- * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
- * \param level as passed to glTexImage
- * \param internalFormat as passed to glTexImage
- * \param format as passed to glTexImage
- * \param type as passed to glTexImage
- * \param width as passed to glTexImage
- * \param height as passed to glTexImage
- * \param depth as passed to glTexImage
- * \param border as passed to glTexImage
- * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
- */
-GLboolean
-_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
- GLint internalFormat, GLenum format, GLenum type,
- GLint width, GLint height, GLint depth, GLint border)
-{
- GLint maxSize;
-
- (void) internalFormat;
- (void) format;
- (void) type;
-
- switch (target) {
- case GL_PROXY_TEXTURE_1D:
- maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
- if (width < 2 * border || width > 2 * border + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.MaxTextureLevels)
- return GL_FALSE;
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_2D:
- maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
- if (width < 2 * border || width > 2 * border + maxSize)
- return GL_FALSE;
- if (height < 2 * border || height > 2 * border + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.MaxTextureLevels)
- return GL_FALSE;
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
- return GL_FALSE;
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
- if (width < 2 * border || width > 2 * border + maxSize)
- return GL_FALSE;
- if (height < 2 * border || height > 2 * border + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.MaxCubeTextureLevels)
- return GL_FALSE;
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
- return GL_FALSE;
- return GL_TRUE;
-
- default:
- _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
- return GL_FALSE;
- }
-}
-
-
-/**
- * Check if the memory used by the texture would exceed the driver's limit.
- * This lets us support a max 3D texture size of 8K (for example) but
- * prevents allocating a full 8K x 8K x 8K texture.
- * XXX this could be rolled into the proxy texture size test (above) but
- * we don't have the actual texture internal format at that point.
- */
-static GLboolean
-legal_texture_size(struct gl_context *ctx, gl_format format,
- GLint width, GLint height, GLint depth)
-{
- uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
- uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
- return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
-}
-
-/**
- * Check if the given texture target value is legal for a
- * glTexImage1/2/3D call.
- */
-static GLboolean
-legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
-{
- switch (dims) {
- case 1:
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- return GL_TRUE;
- default:
- return GL_FALSE;
- }
- case 2:
- switch (target) {
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return GL_TRUE;
- case GL_PROXY_TEXTURE_CUBE_MAP:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- return ctx->Extensions.ARB_texture_cube_map;
- default:
- return GL_FALSE;
- }
- default:
- _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
- return GL_FALSE;
- }
-}
-
-
-/**
- * Check if the given texture target value is legal for a
- * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
- * The difference compared to legal_teximage_target() above is that
- * proxy targets are not supported.
- */
-static GLboolean
-legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
-{
- switch (dims) {
- case 1:
- return target == GL_TEXTURE_1D;
- case 2:
- switch (target) {
- case GL_TEXTURE_2D:
- return GL_TRUE;
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- return ctx->Extensions.ARB_texture_cube_map;
- default:
- return GL_FALSE;
- }
- default:
- _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
- dims);
- return GL_FALSE;
- }
-}
-
-
-/**
- * Helper function to determine if a texture object is mutable (in terms
- * of GL_ARB_texture_storage).
- */
-static GLboolean
-mutable_tex_object(struct gl_context *ctx, GLenum target)
-{
- if (ctx->Extensions.ARB_texture_storage) {
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, target);
- return !texObj->Immutable;
- }
- return GL_TRUE;
-}
-
-
-
-/**
- * Test the glTexImage[123]D() parameters for errors.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- * \param internalFormat internal format given by the user.
- * \param format pixel data format given by the user.
- * \param type pixel data type given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- * \param depth image depth given by the user.
- * \param border image border given by the user.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- *
- * Verifies each of the parameters against the constants specified in
- * __struct gl_contextRec::Const and the supported extensions, and according
- * to the OpenGL specification.
- */
-static GLboolean
-texture_error_check( struct gl_context *ctx,
- GLuint dimensions, GLenum target,
- GLint level, GLint internalFormat,
- GLenum format, GLenum type,
- GLint width, GLint height,
- GLint depth, GLint border )
-{
- const GLenum proxyTarget = get_proxy_target(target);
- const GLboolean isProxy = target == proxyTarget;
- GLboolean sizeOK = GL_TRUE;
- GLboolean colorFormat;
- GLenum err;
-
- /* Even though there are no color-index textures, we still have to support
- * uploading color-index data and remapping it to RGB via the
- * GL_PIXEL_MAP_I_TO_[RGBA] tables.
- */
- const GLboolean indexFormat = (format == GL_COLOR_INDEX);
-
- /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(level=%d)", dimensions, level);
- }
- return GL_TRUE;
- }
-
- /* Check border */
- if (border < 0 || border > 1) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(border=%d)", dimensions, border);
- }
- return GL_TRUE;
- }
-
- if (width < 0 || height < 0 || depth < 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(width, height or depth < 0)", dimensions);
- }
- return GL_TRUE;
- }
-
- /* Do this simple check before calling the TestProxyTexImage() function */
- if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
- sizeOK = (width == height);
- }
-
- /*
- * Use the proxy texture driver hook to see if the size/level/etc are
- * legal.
- */
- sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
- internalFormat, format,
- type, width, height,
- depth, border);
- if (!sizeOK) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
- dimensions, level, width, height, depth);
- }
- return GL_TRUE;
- }
-
- /* Check internalFormat */
- if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(internalFormat=%s)",
- dimensions, _mesa_lookup_enum_by_nr(internalFormat));
- }
- return GL_TRUE;
- }
-
- /* Check incoming image format and type */
- err = _mesa_error_check_format_and_type(ctx, format, type);
- if (err != GL_NO_ERROR) {
- if (!isProxy) {
- _mesa_error(ctx, err,
- "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
- dimensions, format, type);
- }
- return GL_TRUE;
- }
-
- /* make sure internal format and format basically agree */
- colorFormat = _mesa_is_color_format(format);
- if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
- (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
- (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format))) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
- dimensions, internalFormat, format);
- return GL_TRUE;
- }
-
- /* additional checks for ycbcr textures */
- if (internalFormat == GL_YCBCR_MESA) {
- ASSERT(ctx->Extensions.MESA_ycbcr_texture);
- if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
- type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
- char message[100];
- _mesa_snprintf(message, sizeof(message),
- "glTexImage%dD(format/type YCBCR mismatch", dimensions);
- _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
- return GL_TRUE; /* error */
- }
- if (target != GL_TEXTURE_2D &&
- target != GL_PROXY_TEXTURE_2D) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
- return GL_TRUE;
- }
- if (border != 0) {
- if (!isProxy) {
- char message[100];
- _mesa_snprintf(message, sizeof(message),
- "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
- dimensions, border);
- _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
- }
- return GL_TRUE;
- }
- }
-
- /* additional checks for depth textures */
- if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
- /* Only 1D, 2D, rect, array and cube textures supported, not 3D
- * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
- if (target != GL_TEXTURE_1D &&
- target != GL_PROXY_TEXTURE_1D &&
- target != GL_TEXTURE_2D &&
- target != GL_PROXY_TEXTURE_2D &&
- !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
- (ctx->VersionMajor >= 3))) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glTexImage(target/internalFormat)");
- return GL_TRUE;
- }
- }
-
- /* additional checks for integer textures */
- if ((ctx->VersionMajor >= 3 || ctx->Extensions.EXT_texture_integer) &&
- (_mesa_is_integer_format(format) !=
- _mesa_is_integer_format(internalFormat))) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(integer/non-integer format mismatch)",
- dimensions);
- }
- return GL_TRUE;
- }
-
- if (!mutable_tex_object(ctx, target)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(immutable texture)", dimensions);
- return GL_TRUE;
- }
-
- /* if we get here, the parameters are OK */
- return GL_FALSE;
-}
-
-
-/**
- * Test glTexSubImage[123]D() parameters for errors.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- * \param xoffset sub-image x offset given by the user.
- * \param yoffset sub-image y offset given by the user.
- * \param zoffset sub-image z offset given by the user.
- * \param format pixel data format given by the user.
- * \param type pixel data type given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- * \param depth image depth given by the user.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- *
- * Verifies each of the parameters against the constants specified in
- * __struct gl_contextRec::Const and the supported extensions, and according
- * to the OpenGL specification.
- */
-static GLboolean
-subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type )
-{
- GLenum err;
-
- /* Basic level check */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
- return GL_TRUE;
- }
-
- /* Check for negative sizes */
- if (width < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexSubImage%dD(width=%d)", dimensions, width);
- return GL_TRUE;
- }
- if (height < 0 && dimensions > 1) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexSubImage%dD(height=%d)", dimensions, height);
- return GL_TRUE;
- }
- if (depth < 0 && dimensions > 2) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexSubImage%dD(depth=%d)", dimensions, depth);
- return GL_TRUE;
- }
-
- err = _mesa_error_check_format_and_type(ctx, format, type);
- if (err != GL_NO_ERROR) {
- _mesa_error(ctx, err,
- "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
- dimensions, format, type);
- return GL_TRUE;
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Do second part of glTexSubImage which depends on the destination texture.
- * \return GL_TRUE if error recorded, GL_FALSE otherwise
- */
-static GLboolean
-subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type,
- const struct gl_texture_image *destTex )
-{
- if (!destTex) {
- /* undefined image level */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
- return GL_TRUE;
- }
-
- if (xoffset < -((GLint)destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
- dimensions);
- return GL_TRUE;
- }
- if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
- dimensions);
- return GL_TRUE;
- }
- if (dimensions > 1) {
- if (yoffset < -((GLint)destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
- dimensions);
- return GL_TRUE;
- }
- if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
- dimensions);
- return GL_TRUE;
- }
- }
-
- if (ctx->VersionMajor >= 3 || ctx->Extensions.EXT_texture_integer) {
- /* both source and dest must be integer-valued, or neither */
- if (_mesa_is_format_integer_color(destTex->TexFormat) !=
- _mesa_is_integer_format(format)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexSubImage%dD(integer/non-integer format mismatch)",
- dimensions);
- return GL_TRUE;
- }
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Test glCopyTexImage[12]D() parameters for errors.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- * \param internalFormat internal format given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- * \param border texture border.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- *
- * Verifies each of the parameters against the constants specified in
- * __struct gl_contextRec::Const and the supported extensions, and according
- * to the OpenGL specification.
- */
-static GLboolean
-copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level, GLint internalFormat,
- GLint width, GLint height, GLint border )
-{
- const GLenum proxyTarget = get_proxy_target(target);
- const GLenum type = GL_FLOAT;
- GLboolean sizeOK;
- GLint baseFormat;
-
- /* check target */
- if (!legal_texsubimage_target(ctx, dimensions, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
- dimensions, _mesa_lookup_enum_by_nr(target));
- return GL_TRUE;
- }
-
- /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage%dD(level=%d)", dimensions, level);
- return GL_TRUE;
- }
-
- /* Check border */
- if (border < 0 || border > 1) {
- return GL_TRUE;
- }
-
- baseFormat = _mesa_base_tex_format(ctx, internalFormat);
- if (baseFormat < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage%dD(internalFormat)", dimensions);
- return GL_TRUE;
- }
-
- if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(missing readbuffer)", dimensions);
- return GL_TRUE;
- }
-
- /* From the EXT_texture_integer spec:
- *
- * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
- * if the texture internalformat is an integer format and the read color
- * buffer is not an integer format, or if the internalformat is not an
- * integer format and the read color buffer is an integer format."
- */
- if (_mesa_is_color_format(internalFormat)) {
- struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
-
- if (_mesa_is_integer_format(rb->InternalFormat) !=
- _mesa_is_integer_format(internalFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(integer vs non-integer)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* Do size, level checking */
- sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
- ? (width == height) : 1;
-
- sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
- internalFormat, baseFormat,
- type, width, height,
- 1, border);
-
- if (!sizeOK) {
- if (dimensions == 1) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage1D(width=%d)", width);
- }
- else {
- ASSERT(dimensions == 2);
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage2D(width=%d, height=%d)", width, height);
- }
- return GL_TRUE;
- }
-
- if (!mutable_tex_object(ctx, target)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(immutable texture)", dimensions);
- return GL_TRUE;
- }
-
- /* if we get here, the parameters are OK */
- return GL_FALSE;
-}
-
-
-/**
- * Test glCopyTexSubImage[12]D() parameters for errors.
- * Note that this is the first part of error checking.
- * See also copytexsubimage_error_check2() below for the second part.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- */
-static GLboolean
-copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level)
-{
- /* check target (proxies not allowed) */
- if (!legal_texsubimage_target(ctx, dimensions, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
- dimensions, _mesa_lookup_enum_by_nr(target));
- return GL_TRUE;
- }
-
- /* Check level */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(level=%d)", dimensions, level);
- return GL_TRUE;
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Second part of error checking for glCopyTexSubImage[12]D().
- * \param xoffset sub-image x offset given by the user.
- * \param yoffset sub-image y offset given by the user.
- * \param zoffset sub-image z offset given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- */
-static GLboolean
-copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height,
- const struct gl_texture_image *teximage )
-{
- /* check that dest tex image exists */
- if (!teximage) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(undefined texture level: %d)",
- dimensions, level);
- return GL_TRUE;
- }
-
- /* Check size */
- if (width < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(width=%d)", dimensions, width);
- return GL_TRUE;
- }
- if (dimensions > 1 && height < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(height=%d)", dimensions, height);
- return GL_TRUE;
- }
-
- /* check x/y offsets */
- if (xoffset < -((GLint)teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
- return GL_TRUE;
- }
- if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(xoffset+width)", dimensions);
- return GL_TRUE;
- }
- if (dimensions > 1) {
- if (yoffset < -((GLint)teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
- return GL_TRUE;
- }
- /* NOTE: we're adding the border here, not subtracting! */
- if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(yoffset+height)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* check z offset */
- if (dimensions > 2) {
- if (zoffset < -((GLint)teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(zoffset)", dimensions);
- return GL_TRUE;
- }
- if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
- return GL_TRUE;
- }
- }
-
- if (teximage->InternalFormat == GL_YCBCR_MESA) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
- return GL_TRUE;
- }
-
- if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
- dimensions, teximage->_BaseFormat);
- return GL_TRUE;
- }
-
- /* From the EXT_texture_integer spec:
- *
- * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
- * if the texture internalformat is an integer format and the read color
- * buffer is not an integer format, or if the internalformat is not an
- * integer format and the read color buffer is an integer format."
- */
- if (_mesa_is_color_format(teximage->InternalFormat)) {
- struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
-
- if (_mesa_is_format_integer_color(rb->Format) !=
- _mesa_is_format_integer_color(teximage->TexFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(integer vs non-integer)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* if we get here, the parameters are OK */
- return GL_FALSE;
-}
-
-
-/** Callback info for walking over FBO hash table */
-struct cb_info
-{
- struct gl_context *ctx;
- struct gl_texture_object *texObj;
- GLuint level, face;
-};
-
-/** Debug helper: override the user-requested internal format */
-static GLenum
-override_internal_format(GLenum internalFormat, GLint width, GLint height)
-{
-#if 0
- if (internalFormat == GL_RGBA16F_ARB ||
- internalFormat == GL_RGBA32F_ARB) {
- printf("Convert rgba float tex to int %d x %d\n", width, height);
- return GL_RGBA;
- }
- else if (internalFormat == GL_RGB16F_ARB ||
- internalFormat == GL_RGB32F_ARB) {
- printf("Convert rgb float tex to int %d x %d\n", width, height);
- return GL_RGB;
- }
- else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
- internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
- printf("Convert luminance float tex to int %d x %d\n", width, height);
- return GL_LUMINANCE_ALPHA;
- }
- else if (internalFormat == GL_LUMINANCE16F_ARB ||
- internalFormat == GL_LUMINANCE32F_ARB) {
- printf("Convert luminance float tex to int %d x %d\n", width, height);
- return GL_LUMINANCE;
- }
- else if (internalFormat == GL_ALPHA16F_ARB ||
- internalFormat == GL_ALPHA32F_ARB) {
- printf("Convert luminance float tex to int %d x %d\n", width, height);
- return GL_ALPHA;
- }
- else {
- return internalFormat;
- }
-#else
- return internalFormat;
-#endif
-}
-
-
-/**
- * Choose the actual hardware format for a texture image.
- * Try to use the same format as the previous image level when possible.
- * Otherwise, ask the driver for the best format.
- * It's important to try to choose a consistant format for all levels
- * for efficient texture memory layout/allocation. In particular, this
- * comes up during automatic mipmap generation.
- */
-gl_format
-_mesa_choose_texture_format(struct gl_context *ctx,
- struct gl_texture_object *texObj,
- GLenum target, GLint level,
- GLenum internalFormat, GLenum format, GLenum type)
-{
- gl_format f;
-
- /* see if we've already chosen a format for the previous level */
- if (level > 0) {
- struct gl_texture_image *prevImage =
- _mesa_select_tex_image(ctx, texObj, target, level - 1);
- /* See if the prev level is defined and has an internal format which
- * matches the new internal format.
- */
- if (prevImage &&
- prevImage->Width > 0 &&
- prevImage->InternalFormat == internalFormat) {
- /* use the same format */
- ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
- return prevImage->TexFormat;
- }
- }
-
- /* choose format from scratch */
- f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
- ASSERT(f != MESA_FORMAT_NONE);
- return f;
-}
-
-/**
- * Adjust pixel unpack params and image dimensions to strip off the
- * texture border.
- *
- * Gallium and intel don't support texture borders. They've seldem been used
- * and seldom been implemented correctly anyway.
- *
- * \param unpackNew returns the new pixel unpack parameters
- */
-static void
-strip_texture_border(GLint *border,
- GLint *width, GLint *height, GLint *depth,
- const struct gl_pixelstore_attrib *unpack,
- struct gl_pixelstore_attrib *unpackNew)
-{
- assert(*border > 0); /* sanity check */
-
- *unpackNew = *unpack;
-
- if (unpackNew->RowLength == 0)
- unpackNew->RowLength = *width;
-
- if (depth && unpackNew->ImageHeight == 0)
- unpackNew->ImageHeight = *height;
-
- unpackNew->SkipPixels += *border;
- if (height)
- unpackNew->SkipRows += *border;
- if (depth)
- unpackNew->SkipImages += *border;
-
- assert(*width >= 3);
- *width = *width - 2 * *border;
- if (height && *height >= 3)
- *height = *height - 2 * *border;
- if (depth && *depth >= 3)
- *depth = *depth - 2 * *border;
- *border = 0;
-}
-
-/**
- * Common code to implement all the glTexImage1D/2D/3D functions.
- */
-static void
-teximage(struct gl_context *ctx, GLuint dims,
- GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum format, GLenum type,
- const GLvoid *pixels)
-{
- GLboolean error;
- struct gl_pixelstore_attrib unpack_no_border;
- const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- _mesa_lookup_enum_by_nr(internalFormat),
- width, height, depth, border,
- _mesa_lookup_enum_by_nr(format),
- _mesa_lookup_enum_by_nr(type), pixels);
-
- internalFormat = override_internal_format(internalFormat, width, height);
-
- /* target error checking */
- if (!legal_teximage_target(ctx, dims, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
- dims, _mesa_lookup_enum_by_nr(target));
- return;
- }
-
- /* general error checking */
- error = texture_error_check(ctx, dims, target, level, internalFormat,
- format, type, width, height, depth, border);
-
- if (_mesa_is_proxy_texture(target)) {
- /* Proxy texture: just clear or set state depending on error checking */
- struct gl_texture_image *texImage =
- _mesa_get_proxy_tex_image(ctx, target, level);
-
- if (error) {
- /* when error, clear all proxy texture image parameters */
- if (texImage)
- clear_teximage_fields(texImage);
- }
- else {
- /* no error, set the tex image parameters */
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, target);
- gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
- target, level,
- internalFormat,
- format, type);
-
- if (legal_texture_size(ctx, texFormat, width, height, depth)) {
- _mesa_init_teximage_fields(ctx, texImage, width, height,
- depth, border, internalFormat,
- texFormat);
- }
- else if (texImage) {
- clear_teximage_fields(texImage);
- }
- }
- }
- else {
- /* non-proxy target */
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- if (error) {
- return; /* error was recorded */
- }
-
- /* Allow a hardware driver to just strip out the border, to provide
- * reliable but slightly incorrect hardware rendering instead of
- * rarely-tested software fallback rendering.
- */
- if (border && ctx->Const.StripTextureBorder) {
- strip_texture_border(&border, &width, &height, &depth, unpack,
- &unpack_no_border);
- unpack = &unpack_no_border;
- }
-
- if (ctx->NewState & _NEW_PIXEL)
- _mesa_update_state(ctx);
-
- texObj = _mesa_select_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_get_tex_image(ctx, texObj, target, level);
-
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
- }
- else {
- gl_format texFormat;
-
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
-
- texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
- internalFormat, format,
- type);
-
- if (legal_texture_size(ctx, texFormat, width, height, depth)) {
- _mesa_init_teximage_fields(ctx, texImage,
- width, height, depth,
- border, internalFormat, texFormat);
-
- /* Give the texture to the driver. <pixels> may be null. */
- switch (dims) {
- case 1:
- ctx->Driver.TexImage1D(ctx, texImage, internalFormat,
- width, border, format,
- type, pixels, unpack);
- break;
- case 2:
- ctx->Driver.TexImage2D(ctx, texImage, internalFormat,
- width, height, border, format,
- type, pixels, unpack);
- break;
- default:
- _mesa_problem(ctx, "invalid dims=%u in teximage()", dims);
- }
-
- /* state update */
- texObj->_Complete = GL_FALSE;
- ctx->NewState |= _NEW_TEXTURE;
- }
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
- }
-}
-
-
-/*
- * Called from the API. Note that width includes the border.
- */
-void GLAPIENTRY
-_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLint border, GLenum format,
- GLenum type, const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
- border, format, type, pixels);
-}
-
-
-void GLAPIENTRY
-_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLsizei height, GLint border,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- teximage(ctx, 2, target, level, internalFormat, width, height, 1,
- border, format, type, pixels);
-}
-
-
-/**
- * Implement all the glTexSubImage1/2/3D() functions.
- */
-static void
-texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLenum type, const GLvoid *pixels )
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- xoffset, yoffset, zoffset, width, height, depth,
- _mesa_lookup_enum_by_nr(format),
- _mesa_lookup_enum_by_nr(type), pixels);
-
- /* check target (proxies not allowed) */
- if (!legal_texsubimage_target(ctx, dims, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
- dims, _mesa_lookup_enum_by_nr(target));
- return;
- }
-
- if (ctx->NewState & _NEW_PIXEL)
- _mesa_update_state(ctx);
-
- if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
- width, height, depth, format, type)) {
- return; /* error was detected */
- }
-
- texObj = _mesa_select_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
-
- if (subtexture_error_check2(ctx, dims, target, level,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, texImage)) {
- /* error was recorded */
- }
- else if (width > 0 && height > 0 && depth > 0) {
- /* If we have a border, offset=-1 is legal. Bias by border width. */
- switch (dims) {
- case 3:
- zoffset += texImage->Border;
- /* fall-through */
- case 2:
- yoffset += texImage->Border;
- /* fall-through */
- case 1:
- xoffset += texImage->Border;
- }
-
- switch (dims) {
- case 1:
- ctx->Driver.TexSubImage1D(ctx, texImage,
- xoffset, width,
- format, type, pixels, &ctx->Unpack);
- break;
- case 2:
- ctx->Driver.TexSubImage2D(ctx, texImage,
- xoffset, yoffset, width, height,
- format, type, pixels, &ctx->Unpack);
- break;
- default:
- _mesa_problem(ctx, "unexpected dims in subteximage()");
- }
-
- ctx->NewState |= _NEW_TEXTURE;
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-void GLAPIENTRY
-_mesa_TexSubImage1D( GLenum target, GLint level,
- GLint xoffset, GLsizei width,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- texsubimage(ctx, 1, target, level,
- xoffset, 0, 0,
- width, 1, 1,
- format, type, pixels);
-}
-
-
-void GLAPIENTRY
-_mesa_TexSubImage2D( GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- texsubimage(ctx, 2, target, level,
- xoffset, yoffset, 0,
- width, height, 1,
- format, type, pixels);
-}
-
-
-
-/**
- * For glCopyTexSubImage, return the source renderbuffer to copy texel data
- * from. This depends on whether the texture contains color or depth values.
- */
-static struct gl_renderbuffer *
-get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
-{
- if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
- /* reading from depth/stencil buffer */
- return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
- }
- else {
- /* copying from color buffer */
- return ctx->ReadBuffer->_ColorReadBuffer;
- }
-}
-
-
-
-/**
- * Implement the glCopyTexImage1/2D() functions.
- */
-static void
-copyteximage(struct gl_context *ctx, GLuint dims,
- GLenum target, GLint level, GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- _mesa_lookup_enum_by_nr(internalFormat),
- x, y, width, height, border);
-
- if (ctx->NewState & NEW_COPY_TEX_STATE)
- _mesa_update_state(ctx);
-
- if (copytexture_error_check(ctx, dims, target, level, internalFormat,
- width, height, border))
- return;
-
- texObj = _mesa_select_tex_object(ctx, target);
-
- if (border && ctx->Const.StripTextureBorder) {
- x += border;
- width -= border * 2;
- if (dims == 2) {
- y += border;
- height -= border * 2;
- }
- border = 0;
- }
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_get_tex_image(ctx, texObj, target, level);
-
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
- }
- else {
- /* choose actual hw format */
- gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
- target, level,
- internalFormat,
- GL_NONE, GL_NONE);
-
- if (legal_texture_size(ctx, texFormat, width, height, 1)) {
- GLint srcX = x, srcY = y, dstX = 0, dstY = 0;
-
- /* Free old texture image */
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
-
- _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
- border, internalFormat, texFormat);
-
- /* Allocate texture memory (no pixel data yet) */
- if (dims == 1) {
- ctx->Driver.TexImage1D(ctx, texImage, internalFormat,
- width, border, GL_NONE, GL_NONE, NULL,
- &ctx->Unpack);
- }
- else {
- ctx->Driver.TexImage2D(ctx, texImage, internalFormat,
- width, height, border, GL_NONE, GL_NONE,
- NULL, &ctx->Unpack);
- }
-
- if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
- &width, &height)) {
- struct gl_renderbuffer *srcRb =
- get_copy_tex_image_source(ctx, texImage->TexFormat);
-
- if (dims == 1)
- ctx->Driver.CopyTexSubImage1D(ctx, texImage, dstX,
- srcRb, srcX, srcY, width);
-
- else
- ctx->Driver.CopyTexSubImage2D(ctx, texImage, dstX, dstY,
- srcRb, srcX, srcY, width, height);
- }
-
- /* state update */
- texObj->_Complete = GL_FALSE;
- ctx->NewState |= _NEW_TEXTURE;
- }
- else {
- /* probably too large of image */
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexImage1D( GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y,
- GLsizei width, GLint border )
-{
- GET_CURRENT_CONTEXT(ctx);
- copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border )
-{
- GET_CURRENT_CONTEXT(ctx);
- copyteximage(ctx, 2, target, level, internalFormat,
- x, y, width, height, border);
-}
-
-
-
-/**
- * Implementation for glCopyTexSubImage1/2/3D() functions.
- */
-static void
-copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint x, GLint y, GLsizei width, GLsizei height)
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
- dims,
- _mesa_lookup_enum_by_nr(target),
- level, xoffset, yoffset, zoffset, x, y, width, height);
-
- if (ctx->NewState & NEW_COPY_TEX_STATE)
- _mesa_update_state(ctx);
-
- if (copytexsubimage_error_check1(ctx, dims, target, level))
- return;
-
- texObj = _mesa_select_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
-
- if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
- zoffset, width, height, texImage)) {
- /* error was recored */
- }
- else {
- /* If we have a border, offset=-1 is legal. Bias by border width. */
- switch (dims) {
- case 3:
- zoffset += texImage->Border;
- /* fall-through */
- case 2:
- yoffset += texImage->Border;
- /* fall-through */
- case 1:
- xoffset += texImage->Border;
- }
-
- if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
- &width, &height)) {
- struct gl_renderbuffer *srcRb =
- get_copy_tex_image_source(ctx, texImage->TexFormat);
-
- switch (dims) {
- case 1:
- ctx->Driver.CopyTexSubImage1D(ctx, texImage, xoffset,
- srcRb, x, y, width);
- break;
- case 2:
- ctx->Driver.CopyTexSubImage2D(ctx, texImage, xoffset, yoffset,
- srcRb, x, y, width, height);
- break;
- default:
- _mesa_problem(ctx, "bad dims in copytexsubimage()");
- }
-
- ctx->NewState |= _NEW_TEXTURE;
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-void GLAPIENTRY
-_mesa_CopyTexSubImage1D( GLenum target, GLint level,
- GLint xoffset, GLint x, GLint y, GLsizei width )
-{
- GET_CURRENT_CONTEXT(ctx);
- copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexSubImage2D( GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
-{
- GET_CURRENT_CONTEXT(ctx);
- copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
- width, height);
-}
projects / reactos.git / blobdiff