/*
- * mesa 3-D graphics library
- * Version: 7.6
+ * Mesa 3-D graphics library
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
#include "mfeatures.h"
#include "state.h"
#include "texcompress.h"
-#include "texfetch.h"
#include "teximage.h"
#include "texstate.h"
#include "texpal.h"
}
-/*
- * Compute floor(log_base_2(n)).
- * If n < 0 return -1.
- */
-static int
-logbase2( int n )
-{
- GLint i = 1;
- GLint log2 = 0;
-
- if (n < 0)
- return -1;
-
- if (n == 0)
- return 0;
-
- while ( n > i ) {
- i *= 2;
- log2++;
- }
- if (i != n) {
- return log2 - 1;
- }
- else {
- return log2;
- }
-}
-
-
-
/**
* Return the simple base format for a given internal texture format.
* For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
}
}
- if (ctx->Extensions.EXT_paletted_texture) {
- switch (internalFormat) {
- case GL_COLOR_INDEX:
- case GL_COLOR_INDEX1_EXT:
- case GL_COLOR_INDEX2_EXT:
- case GL_COLOR_INDEX4_EXT:
- case GL_COLOR_INDEX8_EXT:
- case GL_COLOR_INDEX12_EXT:
- case GL_COLOR_INDEX16_EXT:
- return GL_COLOR_INDEX;
- default:
- ; /* fallthrough */
- }
- }
-
if (ctx->Extensions.ARB_depth_texture) {
switch (internalFormat) {
case GL_DEPTH_COMPONENT:
}
}
+ if (ctx->API == API_OPENGLES) {
+ switch (internalFormat) {
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE8_RGB8_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ return GL_RGB;
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
return -1; /* error */
}
* \param target texture target.
* \param level image level.
* \param texImage texture image.
- *
- * This was basically prompted by the introduction of cube maps.
*/
void
_mesa_set_tex_image(struct gl_texture_object *tObj,
/* Set the 'back' pointer */
texImage->TexObject = tObj;
+ texImage->Level = level;
+ texImage->Face = face;
}
/**
* Free texture image data.
- * This function is a fallback called via ctx->Driver.FreeTexImageData().
+ * This function is a fallback called via ctx->Driver.FreeTextureImageBuffer().
*
* \param texImage texture image.
*
/**
- * Free 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 texImage->Data and/or any other driver-specific texture
* image storage.
*/
- ASSERT(ctx->Driver.FreeTexImageData);
- ctx->Driver.FreeTexImageData( ctx, texImage );
+ ASSERT(ctx->Driver.FreeTextureImageBuffer);
+ ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
ASSERT(texImage->Data == NULL);
if (texImage->ImageOffsets)
/**
* Get the texture object that corresponds to the target of the given
- * texture unit.
+ * 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.
- *
- * \sa gl_texture_unit.
*/
struct gl_texture_object *
_mesa_select_tex_object(struct gl_context *ctx,
img->DepthLog2 = 0;
img->Data = NULL;
img->TexFormat = MESA_FORMAT_NONE;
- img->FetchTexelc = NULL;
- img->FetchTexelf = NULL;
}
GLint border, GLenum internalFormat,
gl_format format)
{
- GLint i, dims;
+ GLint i;
ASSERT(img);
ASSERT(width >= 0);
img->Depth = depth;
img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
- img->WidthLog2 = logbase2(img->Width2);
+ img->WidthLog2 = _mesa_logbase2(img->Width2);
if (height == 1) { /* 1-D texture */
img->Height2 = 1;
}
else {
img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
- img->HeightLog2 = logbase2(img->Height2);
+ img->HeightLog2 = _mesa_logbase2(img->Height2);
}
if (depth == 1) { /* 2-D texture */
}
else {
img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
- img->DepthLog2 = logbase2(img->Depth2);
+ img->DepthLog2 = _mesa_logbase2(img->Depth2);
}
img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
- if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
- (height == 1 || _mesa_is_pow_two(img->Height2)) &&
- (depth == 1 || _mesa_is_pow_two(img->Depth2)))
- img->_IsPowerOfTwo = GL_TRUE;
- else
- img->_IsPowerOfTwo = GL_FALSE;
-
/* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
img->RowStride = width;
/* Allocate the ImageOffsets array and initialize to typical values.
img->ImageOffsets[i] = i * width * height;
}
- /* Compute Width/Height/DepthScale for mipmap lod computation */
- if (target == GL_TEXTURE_RECTANGLE_NV) {
- /* scale = 1.0 since texture coords directly map to texels */
- img->WidthScale = 1.0;
- img->HeightScale = 1.0;
- img->DepthScale = 1.0;
- }
- else {
- img->WidthScale = (GLfloat) img->Width;
- img->HeightScale = (GLfloat) img->Height;
- img->DepthScale = (GLfloat) img->Depth;
- }
-
img->TexFormat = format;
-
- dims = _mesa_get_texture_dimensions(target);
-
- _mesa_set_fetch_functions(img, dims);
}
_mesa_clear_texture_image(struct gl_context *ctx,
struct gl_texture_image *texImage)
{
- ctx->Driver.FreeTexImageData(ctx, texImage);
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
clear_teximage_fields(texImage);
}
const GLenum proxyTarget = get_proxy_target(target);
const GLboolean isProxy = target == proxyTarget;
GLboolean sizeOK = GL_TRUE;
- GLboolean colorFormat, indexFormat;
+ GLboolean colorFormat;
+
+ /* 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) {
/* make sure internal format and format basically agree */
colorFormat = _mesa_is_color_format(format);
- indexFormat = _mesa_is_index_format(format);
if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
- (_mesa_is_index_format(internalFormat) && !indexFormat) ||
(_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
(_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
(_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
/* additional checks for depth textures */
if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
- /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
+ /* Only 1D, 2D, rect and array textures supported, not 3D or cubes */
if (target != GL_TEXTURE_1D &&
target != GL_PROXY_TEXTURE_1D &&
target != GL_TEXTURE_2D &&
target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_1D_ARRAY &&
+ target != GL_PROXY_TEXTURE_1D_ARRAY &&
+ target != GL_TEXTURE_2D_ARRAY &&
+ target != GL_PROXY_TEXTURE_2D_ARRAY &&
target != GL_TEXTURE_RECTANGLE_ARB &&
target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
if (!isProxy)
else {
gl_format texFormat;
- if (texImage->Data) {
- ctx->Driver.FreeTexImageData( ctx, texImage );
- }
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
ASSERT(texImage->Data == NULL);
texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
} else {
- if (texImage->Data)
- ctx->Driver.FreeTexImageData( ctx, texImage );
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
ASSERT(texImage->Data == NULL);
ctx->Driver.EGLImageTargetTexture2D(ctx, target,
format, type, texImage)) {
/* error was recorded */
}
- else if (width > 0 && height > 0 && height > 0) {
+ 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:
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
}
else {
- gl_format texFormat;
-
- if (texImage->Data) {
- ctx->Driver.FreeTexImageData( ctx, texImage );
- }
+ /* choose actual hw format */
+ gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
+ target, level,
+ internalFormat,
+ GL_NONE, GL_NONE);
- ASSERT(texImage->Data == NULL);
+ if (legal_texture_size(ctx, texFormat, width, height, 1)) {
+ GLint srcX = x, srcY = y, dstX = 0, dstY = 0;
- texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
- internalFormat, GL_NONE,
- GL_NONE);
+ /* Free old texture image */
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
- if (legal_texture_size(ctx, texFormat, width, height, 1)) {
_mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
border, internalFormat, texFormat);
- ASSERT(ctx->Driver.CopyTexImage2D);
- if (dims == 1)
- ctx->Driver.CopyTexImage1D(ctx, target, level, internalFormat,
- x, y, width, border);
- else
- ctx->Driver.CopyTexImage2D(ctx, target, level, internalFormat,
- x, y, width, height, border);
+ /* Allocate texture memory (no pixel data yet) */
+ if (dims == 1) {
+ ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
+ width, border, GL_NONE, GL_NONE, NULL,
+ &ctx->Unpack, texObj, texImage);
+ }
+ else {
+ ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
+ width, height, border, GL_NONE, GL_NONE,
+ NULL, &ctx->Unpack, texObj, texImage);
+ }
+
+ if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
+ &width, &height)) {
+ if (dims == 1)
+ ctx->Driver.CopyTexSubImage1D(ctx, target, level, dstX,
+ srcX, srcY, width);
+
+ else
+ ctx->Driver.CopyTexSubImage2D(ctx, target, level, dstX, dstY,
+ srcX, srcY, width, height);
+ }
check_gen_mipmap(ctx, target, texObj, level);
ctx->NewState |= _NEW_TEXTURE;
}
else {
+ /* probably too large of image */
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
}
}
/**
* Error checking for glCompressedTexImage[123]D().
+ * \param reason returns reason for error, if any
* \return error code or GL_NO_ERROR.
*/
static GLenum
GLenum target, GLint level,
GLenum internalFormat, GLsizei width,
GLsizei height, GLsizei depth, GLint border,
- GLsizei imageSize)
+ GLsizei imageSize, char **reason)
{
const GLenum proxyTarget = get_proxy_target(target);
const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
GLint expectedSize;
+ GLenum choose_format;
+ GLenum choose_type;
+ GLenum proxy_format;
- /* check level */
- if (level < 0 || level >= maxLevels)
- return GL_INVALID_VALUE;
+ *reason = ""; /* no error */
if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ *reason = "target";
return GL_INVALID_ENUM;
}
/* This will detect any invalid internalFormat value */
- if (!_mesa_is_compressed_format(ctx, internalFormat))
+ if (!_mesa_is_compressed_format(ctx, internalFormat)) {
+ *reason = "internalFormat";
return GL_INVALID_ENUM;
+ }
+
+ switch (internalFormat) {
+#if FEATURE_ES
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGB8_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ _mesa_cpal_compressed_format_type(internalFormat, &choose_format,
+ &choose_type);
+ proxy_format = choose_format;
+
+ /* check level */
+ if (level > 0 || level < -maxLevels) {
+ *reason = "level";
+ return GL_INVALID_VALUE;
+ }
+
+ if (dimensions != 2) {
+ *reason = "compressed paletted textures must be 2D";
+ return GL_INVALID_OPERATION;
+ }
+
+ /* Figure out the expected texture size (in bytes). This will be
+ * checked against the actual size later.
+ */
+ expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
+ width, height);
+
+ /* This is for the benefit of the TestProxyTexImage below. It expects
+ * level to be non-negative. OES_compressed_paletted_texture uses a
+ * weird mechanism where the level specified to glCompressedTexImage2D
+ * is -(n-1) number of levels in the texture, and the data specifies the
+ * complete mipmap stack. This is done to ensure the palette is the
+ * same for all levels.
+ */
+ level = -level;
+ break;
+#endif
+
+ default:
+ choose_format = GL_NONE;
+ choose_type = GL_NONE;
+ proxy_format = internalFormat;
+
+ /* check level */
+ if (level < 0 || level >= maxLevels) {
+ *reason = "level";
+ return GL_INVALID_VALUE;
+ }
+
+ /* Figure out the expected texture size (in bytes). This will be
+ * checked against the actual size later.
+ */
+ expectedSize = compressed_tex_size(width, height, depth, internalFormat);
+ break;
+ }
/* This should really never fail */
- if (_mesa_base_tex_format(ctx, internalFormat) < 0)
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
+ *reason = "internalFormat";
return GL_INVALID_ENUM;
+ }
/* No compressed formats support borders at this time */
- if (border != 0)
+ if (border != 0) {
+ *reason = "border != 0";
return GL_INVALID_VALUE;
+ }
/* For cube map, width must equal height */
if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
- target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) {
+ *reason = "width != height";
return GL_INVALID_VALUE;
+ }
/* check image size against compression block size */
{
gl_format texFormat =
- ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
- GL_NONE, GL_NONE);
+ ctx->Driver.ChooseTextureFormat(ctx, proxy_format,
+ choose_format, choose_type);
GLuint bw, bh;
_mesa_get_format_block_size(texFormat, &bw, &bh);
* generated [...] if any parameter combinations are not
* supported by the specific compressed internal format.
*/
+ *reason = "invalid width or height for compression format";
return GL_INVALID_OPERATION;
}
}
/* check image sizes */
if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
- internalFormat, GL_NONE, GL_NONE,
- width, height, depth, border)) {
+ proxy_format, choose_format,
+ choose_type,
+ width, height, depth, border)) {
/* See error comment above */
+ *reason = "invalid width, height or format";
return GL_INVALID_OPERATION;
}
/* check image size in bytes */
- expectedSize = compressed_tex_size(width, height, depth, internalFormat);
if (expectedSize != imageSize) {
/* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
* if <imageSize> is not consistent with the format, dimensions, and
* contents of the specified image.
*/
+ *reason = "imageSize inconsistant with width/height/format";
return GL_INVALID_VALUE;
}
GLsizei imageSize, const GLvoid *data)
{
GLenum error;
+ char *reason = "";
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
error = compressed_texture_error_check(ctx, dims, target, level,
internalFormat, width, height, depth,
- border, imageSize);
+ border, imageSize, &reason);
if (error) {
- _mesa_error(ctx, error, "glTexImage2D");
+ _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
return;
}
else {
gl_format texFormat;
- if (texImage->Data) {
- ctx->Driver.FreeTexImageData( ctx, texImage );
- }
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
ASSERT(texImage->Data == NULL);
texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
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