/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.1
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul 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"),
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+
+/**
+ * \file teximage.c
+ * Texture images manipulation functions.
+ *
+ * \note Mesa's native texture data type is GLchan. Native formats are
+ * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, and
+ * GL_COLOR_INDEX.
+ *
+ * \note Device drivers are free to implement any internal format they want.
+ */
+
+
#include "glheader.h"
#include "context.h"
#include "convolve.h"
#include "mtypes.h"
-/*
- * NOTES:
- *
- * Mesa's native texture datatype is GLchan. Native formats are
- * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA,
- * and GL_COLOR_INDEX.
- * Device drivers are free to implement any internal format they want.
- */
-
-
#if 0
static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
{
#endif
-
/*
* Compute floor(log_base_2(n)).
- * If n <= 0 return -1.
+ * If n < 0 return -1.
*/
static int
logbase2( int n )
GLint i = 1;
GLint log2 = 0;
- if (n <= 0) {
+ if (n < 0)
return -1;
- }
+
+ if (n == 0)
+ return 0;
while ( n > i ) {
i *= 2;
-/*
- * Given an internal texture format enum or 1, 2, 3, 4 return the
- * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE,
- * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA.
+/**
+ * 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.
- *
- * Return -1 if invalid enum.
*/
GLint
-_mesa_base_tex_format( GLcontext *ctx, GLint format )
+_mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
{
- /*
- * Ask the driver for the base format, if it doesn't
- * know, it will return -1;
- */
- switch (format) {
+ switch (internalFormat) {
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
return GL_RGBA;
else
return -1;
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return GL_RGB;
+ else
+ return -1;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ return GL_RGBA;
+ else
+ return -1;
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ if (ctx->Extensions.S3_s3tc)
+ return GL_RGB;
+ else
+ return -1;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ if (ctx->Extensions.S3_s3tc)
+ return GL_RGBA;
+ else
+ return -1;
case GL_YCBCR_MESA:
if (ctx->Extensions.MESA_ycbcr_texture)
else
return -1;
+ /* XXX add float texture formats here */
+
default:
return -1; /* error */
}
}
-/*
- * Test if the given image format is a color/rgba format. That is,
- * not color index, depth, stencil, etc.
+/**
+ * Test if the given internal texture format is a color/RGBA format
+ * (i.e., not color index, depth, stencil, etc).
+ * \param internalFormat an internal texture format token (or 1, 2, 3, or 4)
+ * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
*/
static GLboolean
-is_color_format(GLenum format)
+is_color_format(GLenum internalFormat)
{
- switch (format) {
+ switch (internalFormat) {
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
+ /* XXX add float texture formats here */
return GL_TRUE;
case GL_YCBCR_MESA: /* not considered to be RGB */
default:
}
+/**
+ * Test if the given internal texture format is a color index format.
+ */
static GLboolean
-is_index_format(GLenum format)
+is_index_format(GLenum internalFormat)
{
- switch (format) {
+ switch (internalFormat) {
case GL_COLOR_INDEX:
case GL_COLOR_INDEX1_EXT:
case GL_COLOR_INDEX2_EXT:
/**
- * Return GL_TRUE if internalFormat is a supported compressed format,
- * return GL_FALSE otherwise.
- * \param - internalFormat - the internal format token provided by the user
+ * Test if the given internal texture format is a depth component format.
*/
static GLboolean
-is_compressed_format(GLenum internalFormat)
+is_depth_format(GLenum internalFormat)
+{
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT16_ARB:
+ case GL_DEPTH_COMPONENT24_ARB:
+ case GL_DEPTH_COMPONENT32_ARB:
+ case GL_DEPTH_COMPONENT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given internal texture format is a YCbCr format.
+ */
+static GLboolean
+is_ycbcr_format(GLenum internalFormat)
+{
+ switch (internalFormat) {
+ case GL_YCBCR_MESA:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if it is a supported compressed format.
+ *
+ * \param internalFormat the internal format token provided by the user.
+ *
+ * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
+ * GL_FALSE otherwise.
+ *
+ * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
+ * are supported.
+ */
+static GLboolean
+is_compressed_format(GLcontext *ctx, GLenum internalFormat)
{
switch (internalFormat) {
case GL_COMPRESSED_RGB_FXT1_3DFX:
case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
return GL_TRUE;
default:
+ if (ctx->Driver.IsCompressedFormat) {
+ return ctx->Driver.IsCompressedFormat(ctx, internalFormat);
+ }
return GL_FALSE;
}
}
-/*
+/**
* Store a gl_texture_image pointer in a gl_texture_object structure
* according to the target and level parameters.
+ *
+ * \param tObj texture object.
+ * \param target texture target.
+ * \param level image level.
+ * \param texImage texture image.
+ *
* This was basically prompted by the introduction of cube maps.
*/
void
case GL_TEXTURE_1D:
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
- tObj->Image[level] = texImage;
+ tObj->Image[0][level] = texImage;
return;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
- tObj->Image[level] = texImage;
- return;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
- tObj->NegX[level] = texImage;
- return;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
- tObj->PosY[level] = texImage;
- return;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
- tObj->NegY[level] = texImage;
- return;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
- tObj->PosZ[level] = texImage;
- return;
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
- tObj->NegZ[level] = texImage;
- return;
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: {
+ GLuint face = ((GLuint) target -
+ (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
+ tObj->Image[face][level] = texImage;
+ break;
+ }
case GL_TEXTURE_RECTANGLE_NV:
ASSERT(level == 0);
- tObj->Image[level] = texImage;
+ tObj->Image[0][level] = texImage;
return;
default:
_mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
}
-
/**
- * Return new gl_texture_image struct with all fields initialized to zero.
+ * 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( GLcontext *ctx )
}
-
/**
- * Delete/free the given texture image and associated image data if it's not
+ * Free texture image.
+ *
+ * \param teximage texture image.
+ *
+ * Free the texture image structure and the associated image data if it's not
* marked as client data.
*/
void
}
-/*
- * Return GL_TRUE if the target is a proxy target.
+/**
+ * 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.
*/
static GLboolean
is_proxy_target(GLenum target)
}
-/*
- * Given a texture unit and a texture target, return the corresponding
- * texture object.
+/**
+ * Get the texture object that corresponds to the target of the given texture unit.
+ *
+ * \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(GLcontext *ctx, const struct gl_texture_unit *texUnit,
}
-/*
- * Return the texture image struct which corresponds to target and level
- * for the given texture unit.
+/**
+ * Get the texture image struct which corresponds to target and level
+ * of the given texture unit.
+ *
+ * \param ctx GL context.
+ * \param texUnit texture unit.
+ * \param target texture target.
+ * \param level image level.
+ *
+ * \return pointer to the texture image structure on success, or NULL on failure.
+ *
+ * \sa gl_texture_unit.
*/
struct gl_texture_image *
_mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
ASSERT(level < MAX_TEXTURE_LEVELS);
switch (target) {
case GL_TEXTURE_1D:
- return texUnit->Current1D->Image[level];
+ return texUnit->Current1D->Image[0][level];
case GL_PROXY_TEXTURE_1D:
- return ctx->Texture.Proxy1D->Image[level];
+ return ctx->Texture.Proxy1D->Image[0][level];
case GL_TEXTURE_2D:
- return texUnit->Current2D->Image[level];
+ return texUnit->Current2D->Image[0][level];
case GL_PROXY_TEXTURE_2D:
- return ctx->Texture.Proxy2D->Image[level];
+ return ctx->Texture.Proxy2D->Image[0][level];
case GL_TEXTURE_3D:
- return texUnit->Current3D->Image[level];
+ return texUnit->Current3D->Image[0][level];
case GL_PROXY_TEXTURE_3D:
- return ctx->Texture.Proxy3D->Image[level];
+ return ctx->Texture.Proxy3D->Image[0][level];
case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
- if (ctx->Extensions.ARB_texture_cube_map)
- return texUnit->CurrentCubeMap->Image[level];
- else
- return NULL;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
- if (ctx->Extensions.ARB_texture_cube_map)
- return texUnit->CurrentCubeMap->NegX[level];
- else
- return NULL;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
- if (ctx->Extensions.ARB_texture_cube_map)
- return texUnit->CurrentCubeMap->PosY[level];
- else
- return NULL;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
- if (ctx->Extensions.ARB_texture_cube_map)
- return texUnit->CurrentCubeMap->NegY[level];
- else
- return NULL;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
- if (ctx->Extensions.ARB_texture_cube_map)
- return texUnit->CurrentCubeMap->PosZ[level];
- else
- return NULL;
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
- if (ctx->Extensions.ARB_texture_cube_map)
- return texUnit->CurrentCubeMap->NegZ[level];
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ if (ctx->Extensions.ARB_texture_cube_map) {
+ GLuint face = ((GLuint) target -
+ (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
+ return texUnit->CurrentCubeMap->Image[face][level];
+ }
else
return NULL;
case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
if (ctx->Extensions.ARB_texture_cube_map)
- return ctx->Texture.ProxyCubeMap->Image[level];
+ return ctx->Texture.ProxyCubeMap->Image[0][level];
else
return NULL;
case GL_TEXTURE_RECTANGLE_NV:
if (ctx->Extensions.NV_texture_rectangle) {
ASSERT(level == 0);
- return texUnit->CurrentRect->Image[level];
+ return texUnit->CurrentRect->Image[0][level];
}
else {
return NULL;
case GL_PROXY_TEXTURE_RECTANGLE_NV:
if (ctx->Extensions.NV_texture_rectangle) {
ASSERT(level == 0);
- return ctx->Texture.ProxyRect->Image[level];
+ return ctx->Texture.ProxyRect->Image[0][level];
}
else {
return NULL;
case GL_PROXY_TEXTURE_1D:
if (level >= ctx->Const.MaxTextureLevels)
return NULL;
- texImage = ctx->Texture.Proxy1D->Image[level];
+ texImage = ctx->Texture.Proxy1D->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.Proxy1D->Image[level] = texImage;
+ ctx->Texture.Proxy1D->Image[0][level] = texImage;
}
return texImage;
case GL_PROXY_TEXTURE_2D:
if (level >= ctx->Const.MaxTextureLevels)
return NULL;
- texImage = ctx->Texture.Proxy2D->Image[level];
+ texImage = ctx->Texture.Proxy2D->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.Proxy2D->Image[level] = texImage;
+ ctx->Texture.Proxy2D->Image[0][level] = texImage;
}
return texImage;
case GL_PROXY_TEXTURE_3D:
if (level >= ctx->Const.Max3DTextureLevels)
return NULL;
- texImage = ctx->Texture.Proxy3D->Image[level];
+ texImage = ctx->Texture.Proxy3D->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.Proxy3D->Image[level] = texImage;
+ ctx->Texture.Proxy3D->Image[0][level] = texImage;
}
return texImage;
case GL_PROXY_TEXTURE_CUBE_MAP:
if (level >= ctx->Const.MaxCubeTextureLevels)
return NULL;
- texImage = ctx->Texture.ProxyCubeMap->Image[level];
+ texImage = ctx->Texture.ProxyCubeMap->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.ProxyCubeMap->Image[level] = texImage;
+ ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
}
return texImage;
case GL_PROXY_TEXTURE_RECTANGLE_NV:
if (level > 0)
return NULL;
- texImage = ctx->Texture.ProxyRect->Image[level];
+ texImage = ctx->Texture.ProxyRect->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.ProxyRect->Image[level] = texImage;
+ ctx->Texture.ProxyRect->Image[0][level] = texImage;
}
return texImage;
default:
}
-/*
- * Return the maximum number of allows mipmap levels for the given
- * texture target.
+/**
+ * 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(GLcontext *ctx, GLenum target)
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 ctx->Const.MaxCubeTextureLevels;
break;
/**
* Reset the fields of a gl_texture_image struct to zero.
+ *
+ * \param img texture image structure.
+ *
* This is called when a proxy texture test fails, we set all the
* image members (except DriverData) to zero.
* It's also used in glTexImage[123]D as a safeguard to be sure all
img->DepthLog2 = 0;
img->Data = NULL;
img->TexFormat = &_mesa_null_texformat;
- img->FetchTexel = NULL;
+ img->FetchTexelc = NULL;
+ img->FetchTexelf = NULL;
img->IsCompressed = 0;
img->CompressedSize = 0;
}
-/*
+/**
* Initialize basic fields of the gl_texture_image struct.
+ *
+ * \param ctx GL context.
+ * \param target texture target.
+ * \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.
+ *
+ * Fills in the fields of \p img with the given information.
* Note: width, height and depth include the border.
*/
void
img->Height2 = height - 2 * border; /*1 << img->HeightLog2;*/
img->Depth2 = depth - 2 * border; /*1 << img->DepthLog2;*/
img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
- img->IsCompressed = is_compressed_format(internalFormat);
+ img->IsCompressed = is_compressed_format(ctx, internalFormat);
if (img->IsCompressed)
img->CompressedSize = _mesa_compressed_texture_size(ctx, width, height,
depth, internalFormat);
/**
- * Test glTexImage[123]D() parameters for errors.
- * This function calls the ctx->Driver.TestProxyTexImage() function to
- * check the level and size.
- * \param dimensions must be 1 or 2 or 3
- * \return GL_TRUE if an error was detected or GL_FALSE if no errors
+ * Test the glTexImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \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 dimensions texture image dimensions (must be 1, 2 or 3).
+ * \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
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
*/
static GLboolean
texture_error_check( GLcontext *ctx, GLenum target,
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;
+ }
+
/* Check target and call ctx->Driver.TestProxyTexImage() to check the
* level, width, height and depth.
*/
}
}
- if (is_compressed_format(internalFormat)) {
+ if (is_compressed_format(ctx, internalFormat)) {
if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
/* OK */
}
}
-
-/*
+/**
* Test glTexSubImage[123]D() parameters for errors.
- * Input:
- * dimensions - must be 1 or 2 or 3
- * Return: GL_TRUE = an error was detected, GL_FALSE = no 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
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
*/
static GLboolean
subtexture_error_check( GLcontext *ctx, GLuint dimensions,
}
-/*
+/**
* Test glCopyTexImage[12]D() parameters for errors.
- * Input: dimensions - must be 1 or 2 or 3
- * Return: GL_TRUE = an error was detected, GL_FALSE = no 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 depth image depth 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
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
*/
static GLboolean
copytexture_error_check( GLcontext *ctx, GLuint dimensions,
return GL_TRUE;
}
- if (is_compressed_format(internalFormat)) {
+ if (is_compressed_format(ctx, internalFormat)) {
if (target != GL_TEXTURE_2D) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glCopyTexImage%d(target)", dimensions);
}
+/**
+ * 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 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.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
+ */
static GLboolean
copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
GLenum target, GLint level,
}
-
-void
+/**
+ * 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 )
{
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
}
- if (!ctx->Extensions.SGIX_depth_texture && format == GL_DEPTH_COMPONENT) {
+ if (!ctx->Extensions.SGIX_depth_texture && is_depth_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
}
- if (!ctx->Extensions.MESA_ycbcr_texture && format == GL_YCBCR_MESA) {
+ if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
}
- /* XXX what if format/type doesn't match texture format/type? */
-
if (!pixels)
return;
return;
}
+ /* Make sure the requested image format is compatible with the
+ * texture's format.
+ */
+ if (is_color_format(format)
+ && !is_color_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_index_format(format)
+ && !is_index_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_depth_format(format)
+ && !is_depth_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_ycbcr_format(format)
+ && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+
+
+
{
const GLint width = texImage->Width;
const GLint height = texImage->Height;
GLuint indexRow[MAX_WIDTH];
GLint col;
for (col = 0; col < width; col++) {
- (*texImage->FetchTexel)(texImage, col, row, img,
- (GLvoid *) &indexRow[col]);
+ GLchan indx;
+ (*texImage->FetchTexelc)(texImage, col, row, img, &indx);
+ indexRow[col] = indx;
}
_mesa_pack_index_span(ctx, width, type, dest,
indexRow, &ctx->Pack,
GLfloat depthRow[MAX_WIDTH];
GLint col;
for (col = 0; col < width; col++) {
- (*texImage->FetchTexel)(texImage, col, row, img,
- (GLvoid *) &depthRow[col]);
+ (*texImage->FetchTexelf)(texImage, col, row, img,
+ (GLvoid *) &depthRow[col]);
}
_mesa_pack_depth_span(ctx, width, dest, type,
depthRow, &ctx->Pack);
GLchan rgba[MAX_WIDTH][4];
GLint col;
for (col = 0; col < width; col++) {
- (*texImage->FetchTexel)(texImage, col, row, img,
- (GLvoid *) rgba[col]);
+ (*texImage->FetchTexelc)(texImage, col, row, img, rgba[col]);
}
_mesa_pack_rgba_span(ctx, width, (const GLchan (*)[4])rgba,
format, type, dest, &ctx->Pack,
/*
* Called from the API. Note that width includes the border.
*/
-void
+void GLAPIENTRY
_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
GLsizei width, GLint border, GLenum format,
GLenum type, const GLvoid *pixels )
&ctx->Unpack, texObj, texImage);
ASSERT(texImage->TexFormat);
- if (!texImage->FetchTexel) {
- /* If driver didn't explicitly set this, use the default */
- texImage->FetchTexel = texImage->TexFormat->FetchTexel1D;
- }
- ASSERT(texImage->FetchTexel);
+
+ /* If driver didn't explicitly set this, use the defaults */
+ if (!texImage->FetchTexelc)
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
+ if (!texImage->FetchTexelf)
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
/* state update */
texObj->Complete = GL_FALSE;
}
-void
+void GLAPIENTRY
_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
GLsizei width, GLsizei height, GLint border,
GLenum format, GLenum type,
&ctx->Unpack, texObj, texImage);
ASSERT(texImage->TexFormat);
- if (!texImage->FetchTexel) {
- /* If driver didn't explicitly set this, use the default */
- texImage->FetchTexel = texImage->TexFormat->FetchTexel2D;
- }
- ASSERT(texImage->FetchTexel);
+
+ /* If driver didn't explicitly set these, use the defaults */
+ if (!texImage->FetchTexelc)
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
+ if (!texImage->FetchTexelf)
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
/* state update */
texObj->Complete = GL_FALSE;
1, border)) {
/* when error, clear all proxy texture image parameters */
if (texImage)
- clear_teximage_fields(ctx->Texture.Proxy2D->Image[level]);
+ clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
}
else {
/* no error, set the tex image parameters */
* Called by the API or display list executor.
* Note that width and height include the border.
*/
-void
+void GLAPIENTRY
_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
GLsizei width, GLsizei height, GLsizei depth,
GLint border, GLenum format, GLenum type,
pixels, &ctx->Unpack, texObj, texImage);
ASSERT(texImage->TexFormat);
- if (!texImage->FetchTexel) {
- /* If driver didn't explicitly set this, use the default */
- texImage->FetchTexel = texImage->TexFormat->FetchTexel3D;
- }
- ASSERT(texImage->FetchTexel);
+
+ /* If driver didn't explicitly set these, use the defaults */
+ if (!texImage->FetchTexelc)
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
+ if (!texImage->FetchTexelf)
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
/* state update */
texObj->Complete = GL_FALSE;
}
-void
+void GLAPIENTRY
_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
GLsizei width, GLsizei height, GLsizei depth,
GLint border, GLenum format, GLenum type,
-void
+void GLAPIENTRY
_mesa_TexSubImage1D( GLenum target, GLint level,
GLint xoffset, GLsizei width,
GLenum format, GLenum type,
}
-void
+void GLAPIENTRY
_mesa_TexSubImage2D( GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
-void
+void GLAPIENTRY
_mesa_TexSubImage3D( GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
-void
+void GLAPIENTRY
_mesa_CopyTexImage1D( GLenum target, GLint level,
GLenum internalFormat,
GLint x, GLint y,
x, y, width, border);
ASSERT(texImage->TexFormat);
- if (!texImage->FetchTexel) {
- /* If driver didn't explicitly set this, use the default */
- texImage->FetchTexel = texImage->TexFormat->FetchTexel1D;
- }
- ASSERT(texImage->FetchTexel);
+
+ /* If driver didn't explicitly set these, use the defaults */
+ if (!texImage->FetchTexelc)
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
+ if (!texImage->FetchTexelf)
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
/* state update */
texObj->Complete = GL_FALSE;
-void
+void GLAPIENTRY
_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint border )
x, y, width, height, border);
ASSERT(texImage->TexFormat);
- if (!texImage->FetchTexel) {
- /* If driver didn't explicitly set this, use the default */
- texImage->FetchTexel = texImage->TexFormat->FetchTexel2D;
- }
- ASSERT(texImage->FetchTexel);
+
+ /* If driver didn't explicitly set these, use the defaults */
+ if (!texImage->FetchTexelc)
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
+ if (!texImage->FetchTexelf)
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
/* state update */
texObj->Complete = GL_FALSE;
-void
+void GLAPIENTRY
_mesa_CopyTexSubImage1D( GLenum target, GLint level,
GLint xoffset, GLint x, GLint y, GLsizei width )
{
struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GLsizei postConvWidth = width;
GET_CURRENT_CONTEXT(ctx);
return;
texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
ASSERT(texImage);
-void
+void GLAPIENTRY
_mesa_CopyTexSubImage2D( GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLint x, GLint y, GLsizei width, GLsizei height )
{
struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GLsizei postConvWidth = width, postConvHeight = height;
GET_CURRENT_CONTEXT(ctx);
return;
texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
ASSERT(texImage);
-void
+void GLAPIENTRY
_mesa_CopyTexSubImage3D( GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLint x, GLint y, GLsizei width, GLsizei height )
{
struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GLsizei postConvWidth = width, postConvHeight = height;
GET_CURRENT_CONTEXT(ctx);
return;
texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
ASSERT(texImage);
GLsizei height, GLsizei depth, GLint border,
GLsizei imageSize)
{
- GLboolean isProxy = GL_FALSE;
GLint expectedSize, maxLevels = 0, maxTextureSize;
if (dimensions == 1) {
else if (dimensions == 2) {
if (target == GL_PROXY_TEXTURE_2D) {
maxLevels = ctx->Const.MaxTextureLevels;
- isProxy = GL_TRUE;
}
else if (target == GL_TEXTURE_2D) {
maxLevels = ctx->Const.MaxTextureLevels;
if (!ctx->Extensions.ARB_texture_cube_map)
return GL_INVALID_ENUM; /*target*/
maxLevels = ctx->Const.MaxCubeTextureLevels;
- isProxy = GL_TRUE;
}
else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
maxTextureSize = 1 << (maxLevels - 1);
- if (!is_compressed_format(internalFormat))
+ if (!is_compressed_format(ctx, internalFormat))
return GL_INVALID_ENUM;
if (border != 0)
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLsizei imageSize)
{
- GLboolean isProxy = GL_FALSE;
GLint expectedSize, maxLevels = 0, maxTextureSize;
if (dimensions == 1) {
else if (dimensions == 2) {
if (target == GL_PROXY_TEXTURE_2D) {
maxLevels = ctx->Const.MaxTextureLevels;
- isProxy = GL_TRUE;
}
else if (target == GL_TEXTURE_2D) {
maxLevels = ctx->Const.MaxTextureLevels;
if (!ctx->Extensions.ARB_texture_cube_map)
return GL_INVALID_ENUM; /*target*/
maxLevels = ctx->Const.MaxCubeTextureLevels;
- isProxy = GL_TRUE;
}
else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
maxTextureSize = 1 << (maxLevels - 1);
- if (!is_compressed_format(format))
+ if (!is_compressed_format(ctx, format))
return GL_INVALID_ENUM;
if (width < 1 || width > maxTextureSize)
-void
+void GLAPIENTRY
_mesa_CompressedTexImage1DARB(GLenum target, GLint level,
GLenum internalFormat, GLsizei width,
GLint border, GLsizei imageSize,
}
-void
+void GLAPIENTRY
_mesa_CompressedTexImage2DARB(GLenum target, GLint level,
GLenum internalFormat, GLsizei width,
GLsizei height, GLint border, GLsizei imageSize,
}
-void
+void GLAPIENTRY
_mesa_CompressedTexImage3DARB(GLenum target, GLint level,
GLenum internalFormat, GLsizei width,
GLsizei height, GLsizei depth, GLint border,
}
-void
+void GLAPIENTRY
_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
GLsizei width, GLenum format,
GLsizei imageSize, const GLvoid *data)
}
-void
+void GLAPIENTRY
_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
GLint yoffset, GLsizei width, GLsizei height,
GLenum format, GLsizei imageSize,
error = compressed_subtexture_error_check(ctx, 2, target, level,
xoffset, yoffset, 0, width, height, 1, format, imageSize);
if (error) {
+ /* XXX proxy target? */
_mesa_error(ctx, error, "glCompressedTexSubImage2D");
return;
}
}
-void
+void GLAPIENTRY
_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
GLint yoffset, GLint zoffset, GLsizei width,
GLsizei height, GLsizei depth, GLenum format,
}
-void
+void GLAPIENTRY
_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
{
const struct gl_texture_unit *texUnit;