#include "glheader.h"
+#include "bufferobj.h"
#include "context.h"
#include "image.h"
#include "texcompress.h"
#include "texformat.h"
#include "texgetimage.h"
+#include "teximage.h"
+#include "texstate.h"
{
const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
- if (ctx->Pack.BufferObj->Name) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* Packing texture image into a PBO.
* Map the (potentially) VRAM-based buffer into our process space so
* we can write into it with the code below.
} /* img */
}
- if (ctx->Pack.BufferObj->Name) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
{
GLuint size;
- if (ctx->Pack.BufferObj->Name) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* pack texture image into a PBO */
GLubyte *buf;
if ((const GLubyte *) img + texImage->CompressedSize >
/* just memcpy, no pixelstore or pixel transfer */
_mesa_memcpy(img, texImage->Data, size);
- if (ctx->Pack.BufferObj->Name) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
}
+
+
+
+/**
+ * Do error checking for a glGetTexImage() call.
+ * \return GL_TRUE if any error, GL_FALSE if no errors.
+ */
+static GLboolean
+getteximage_error_check(GLcontext *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels )
+{
+ const struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLuint maxLevels = _mesa_max_texture_levels(ctx, target);
+
+ if (maxLevels == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target);
+ return GL_TRUE;
+ }
+
+ if (level < 0 || level >= maxLevels) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
+ return GL_TRUE;
+ }
+
+ if (_mesa_sizeof_packed_type(type) <= 0) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
+ return GL_TRUE;
+ }
+
+ if (_mesa_components_in_format(format) <= 0 ||
+ format == GL_STENCIL_INDEX) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.EXT_paletted_texture && _mesa_is_index_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.ARB_depth_texture && _mesa_is_depth_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.MESA_ycbcr_texture && _mesa_is_ycbcr_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.EXT_packed_depth_stencil
+ && _mesa_is_depthstencil_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.ATI_envmap_bumpmap
+ && _mesa_is_dudv_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ texUnit = _mesa_get_current_tex_unit(ctx);
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+
+ if (!texObj || _mesa_is_proxy_texture(target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
+ return GL_TRUE;
+ }
+
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (!texImage) {
+ /* out of memory */
+ return GL_TRUE;
+ }
+
+ /* Make sure the requested image format is compatible with the
+ * texture's format. Note that a color index texture can be converted
+ * to RGBA so that combo is allowed.
+ */
+ if (_mesa_is_color_format(format)
+ && !_mesa_is_color_format(texImage->TexFormat->BaseFormat)
+ && !_mesa_is_index_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_index_format(format)
+ && !_mesa_is_index_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_depth_format(format)
+ && !_mesa_is_depth_format(texImage->TexFormat->BaseFormat)
+ && !_mesa_is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_ycbcr_format(format)
+ && !_mesa_is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_depthstencil_format(format)
+ && !_mesa_is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_dudv_format(format)
+ && !_mesa_is_dudv_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ /* packing texture image into a PBO */
+ const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
+ if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
+ texImage->Height, texImage->Depth,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetTexImage(invalid PBO access)");
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+
+/**
+ * Get texture image. Called by glGetTexImage.
+ *
+ * \param target texture target.
+ * \param level image level.
+ * \param format pixel data format for returned image.
+ * \param type pixel data type for returned image.
+ * \param pixels returned pixel data.
+ */
+void GLAPIENTRY
+_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
+ GLenum type, GLvoid *pixels )
+{
+ const struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (getteximage_error_check(ctx, target, level, format, type, pixels)) {
+ return;
+ }
+
+ texUnit = _mesa_get_current_tex_unit(ctx);
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+
+ /* typically, this will call _mesa_get_teximage() */
+ ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
+ texObj, texImage);
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
+{
+ const struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLint maxLevels;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ texUnit = _mesa_get_current_tex_unit(ctx);
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ if (!texObj) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
+ return;
+ }
+
+ maxLevels = _mesa_max_texture_levels(ctx, target);
+ ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
+
+ if (level < 0 || level >= maxLevels) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
+ return;
+ }
+
+ if (_mesa_is_proxy_texture(target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
+ return;
+ }
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (texImage) {
+ if (texImage->IsCompressed) {
+ /* this typically calls _mesa_get_compressed_teximage() */
+ ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
+ texObj, texImage);
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImageARB");
+ }
+ }
+ else {
+ /* probably invalid mipmap level */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetCompressedTexImageARB(level)");
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
projects / mesa.git / blobdiff