diff options
author | Brian Paul <[email protected]> | 2012-09-15 10:30:20 -0600 |
---|---|---|
committer | Brian Paul <[email protected]> | 2012-09-17 19:49:26 -0600 |
commit | ff24ed09fae56d1bfe844cb71a0aad5e9908cb55 (patch) | |
tree | ae96075538db2e3bb0d35a288b28c2f7bc2a34b9 /src/mesa/main | |
parent | e6eaa85a43616ba6f431276ab94a3b19dd524986 (diff) |
mesa: rewrite glTexStorage() code
Simplify the code and make it more like the other glTexImage commands.
Call _mesa_legal_texture_dimensions() to validate width, height, depth.
Call ctx->Driver.TestProxyTexImage() to make sure texture is not too large.
Reviewed-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'src/mesa/main')
-rw-r--r-- | src/mesa/main/texstorage.c | 153 |
1 files changed, 79 insertions, 74 deletions
diff --git a/src/mesa/main/texstorage.c b/src/mesa/main/texstorage.c index 10e5f8df35e..0a4cafe450a 100644 --- a/src/mesa/main/texstorage.c +++ b/src/mesa/main/texstorage.c @@ -118,39 +118,42 @@ next_mipmap_level_size(GLenum target, } -/** - * Do actual memory allocation for glTexStorage1/2/3D(). - */ -static void -setup_texstorage(struct gl_context *ctx, - struct gl_texture_object *texObj, - GLuint dims, - gl_format texFormat, - GLsizei levels, GLenum internalFormat, - GLsizei width, GLsizei height, GLsizei depth) +/** Helper to get a particular texture image in a texture object */ +static struct gl_texture_image * +get_tex_image(struct gl_context *ctx, + struct gl_texture_object *texObj, + GLuint face, GLuint level) +{ + const GLenum faceTarget = + (texObj->Target == GL_TEXTURE_CUBE_MAP || + texObj->Target == GL_PROXY_TEXTURE_CUBE_MAP) + ? GL_TEXTURE_CUBE_MAP_POSITIVE_X + face : texObj->Target; + return _mesa_get_tex_image(ctx, texObj, faceTarget, level); +} + + + +static GLboolean +initialize_texture_fields(struct gl_context *ctx, + struct gl_texture_object *texObj, + GLint levels, + GLsizei width, GLsizei height, GLsizei depth, + GLenum internalFormat, gl_format texFormat) { const GLenum target = texObj->Target; const GLuint numFaces = _mesa_num_tex_faces(target); GLint level, levelWidth = width, levelHeight = height, levelDepth = depth; GLuint face; - assert(levels > 0); - assert(width > 0); - assert(height > 0); - assert(depth > 0); - /* Set up all the texture object's gl_texture_images */ for (level = 0; level < levels; level++) { for (face = 0; face < numFaces; face++) { - const GLenum faceTarget = - (target == GL_TEXTURE_CUBE_MAP) - ? GL_TEXTURE_CUBE_MAP_POSITIVE_X + face : target; struct gl_texture_image *texImage = - _mesa_get_tex_image(ctx, texObj, faceTarget, level); + get_tex_image(ctx, texObj, face, level); if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); - return; + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage"); + return GL_FALSE; } _mesa_init_teximage_fields(ctx, texImage, @@ -160,49 +163,18 @@ setup_texstorage(struct gl_context *ctx, next_mipmap_level_size(target, &levelWidth, &levelHeight, &levelDepth); } - - assert(levelWidth > 0); - assert(levelHeight > 0); - assert(levelDepth > 0); - - if (!_mesa_is_proxy_texture(texObj->Target)) { - /* Do actual texture memory allocation */ - if (!ctx->Driver.AllocTextureStorage(ctx, texObj, levels, - width, height, depth)) { - /* Reset the texture images' info to zeros. - * Strictly speaking, we probably don't have to do this since - * generating GL_OUT_OF_MEMORY can leave things in an undefined - * state but this puts things in a consistent state. - */ - for (level = 0; level < levels; level++) { - for (face = 0; face < numFaces; face++) { - struct gl_texture_image *texImage = texObj->Image[face][level]; - if (texImage) { - _mesa_init_teximage_fields(ctx, texImage, - 0, 0, 0, 0, - GL_NONE, MESA_FORMAT_NONE); - } - } - } - - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage%uD", dims); - - return; - } - - /* Only set this field for non-proxy texture objects */ - texObj->Immutable = GL_TRUE; - } + return GL_TRUE; } /** * Clear all fields of texture object to zeros. Used for proxy texture tests. + * Used for proxy texture tests (and to clean up when a texture memory + * allocation fails). */ static void -clear_image_fields(struct gl_context *ctx, - GLuint dims, - struct gl_texture_object *texObj) +clear_texture_fields(struct gl_context *ctx, + struct gl_texture_object *texObj) { const GLenum target = texObj->Target; const GLuint numFaces = _mesa_num_tex_faces(target); @@ -211,19 +183,17 @@ clear_image_fields(struct gl_context *ctx, for (level = 0; level < Elements(texObj->Image[0]); level++) { for (face = 0; face < numFaces; face++) { - const GLenum faceTarget = - (target == GL_TEXTURE_CUBE_MAP) - ? GL_TEXTURE_CUBE_MAP_POSITIVE_X + face : target; struct gl_texture_image *texImage = - _mesa_get_tex_image(ctx, texObj, faceTarget, level); + get_tex_image(ctx, texObj, face, level); if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage%uD", dims); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage"); return; } _mesa_init_teximage_fields(ctx, texImage, - 0, 0, 0, 0, GL_NONE, MESA_FORMAT_NONE); + 0, 0, 0, 0, /* w, h, d, border */ + GL_NONE, MESA_FORMAT_NONE); } } } @@ -356,7 +326,7 @@ texstorage(GLuint dims, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth) { struct gl_texture_object *texObj; - GLboolean sizeOK; + GLboolean sizeOK, dimensionsOK; gl_format texFormat; GET_CURRENT_CONTEXT(ctx); @@ -373,24 +343,59 @@ texstorage(GLuint dims, GLenum target, GLsizei levels, GLenum internalformat, internalformat, GL_NONE, GL_NONE); assert(texFormat != MESA_FORMAT_NONE); + /* check that width, height, depth are legal for the mipmap level */ + dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, 0, + width, height, depth, 0); + sizeOK = ctx->Driver.TestProxyTexImage(ctx, target, 0, texFormat, width, height, depth, 0); - if (!sizeOK) { - if (_mesa_is_proxy_texture(texObj->Target)) { - /* clear all image fields for [levels] */ - clear_image_fields(ctx, dims, texObj); + if (_mesa_is_proxy_texture(texObj->Target)) { + if (dimensionsOK && sizeOK) { + initialize_texture_fields(ctx, texObj, levels, width, height, depth, + internalformat, texFormat); } else { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexStorage%uD(invalid width, height or depth)", - dims); - return; + /* clear all image fields for [levels] */ + clear_texture_fields(ctx, texObj); } } else { - setup_texstorage(ctx, texObj, dims, texFormat, levels, internalformat, - width, height, depth); + if (!dimensionsOK) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glTexStorage%uD(invalid width, height or depth)", dims); + return; + } + + if (!sizeOK) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, + "glTexStorage%uD(texture too large)", dims); + } + + assert(levels > 0); + assert(width > 0); + assert(height > 0); + assert(depth > 0); + + if (!initialize_texture_fields(ctx, texObj, levels, width, height, depth, + internalformat, texFormat)) { + return; + } + + /* Do actual texture memory allocation */ + if (!ctx->Driver.AllocTextureStorage(ctx, texObj, levels, + width, height, depth)) { + /* Reset the texture images' info to zeros. + * Strictly speaking, we probably don't have to do this since + * generating GL_OUT_OF_MEMORY can leave things in an undefined + * state but this puts things in a consistent state. + */ + clear_texture_fields(ctx, texObj); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage%uD", dims); + return; + } + + texObj->Immutable = GL_TRUE; } } |