/**
* Set texture priorities.
*
* \param n number of textures.
* \param texName texture names.
* \param priorities corresponding texture priorities.
*
* \sa glPrioritizeTextures().
*
* Looks up each texture in the hash, clamps the corresponding priority between
* 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
*/
void GLAPIENTRY
_mesa_PrioritizeTextures( GLsizei n, const GLuint *texName,
const GLclampf *priorities )
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (n < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPrioritizeTextures" );
return;
}
if (!priorities)
return;
for (i = 0; i < n; i++) {
if (texName[i] > 0) {
struct gl_texture_object *t = _mesa_lookup_texture(ctx, texName[i]);
if (t) {
t->Priority = CLAMP( priorities[i], 0.0F, 1.0F );
}
}
}
ctx->NewState |= _NEW_TEXTURE;
}
/**
* Set texture priorities.
*
* \param n number of textures.
* \param texName texture names.
* \param priorities corresponding texture priorities.
*
* \sa glPrioritizeTextures().
*
* Looks up each texture in the hash, clamps the corresponding priority between
* 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
*/
void GLAPIENTRY
_mesa_PrioritizeTextures( GLsizei n, const GLuint *texName,
const GLclampf *priorities )
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
_mesa_debug(ctx, "glPrioritizeTextures %d\n", n);
FLUSH_VERTICES(ctx, 0);
if (n < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPrioritizeTextures" );
return;
}
if (!priorities)
return;
for (i = 0; i < n; i++) {
if (texName[i] > 0) {
struct gl_texture_object *t = _mesa_lookup_texture(ctx, texName[i]);
if (t) {
t->Priority = CLAMP( priorities[i], 0.0F, 1.0F );
}
}
}
ctx->NewState |= _NEW_TEXTURE;
}
GLboolean
_mesa_meta_bind_rb_as_tex_image(struct gl_context *ctx,
struct gl_renderbuffer *rb,
GLuint *tex,
struct gl_texture_object **texObj,
GLenum *target)
{
struct gl_texture_image *texImage;
if (rb->NumSamples > 1)
*target = GL_TEXTURE_2D_MULTISAMPLE;
else
*target = GL_TEXTURE_2D;
_mesa_GenTextures(1, tex);
_mesa_BindTexture(*target, *tex);
*texObj = _mesa_lookup_texture(ctx, *tex);
texImage = _mesa_get_tex_image(ctx, *texObj, *target, 0);
if (!ctx->Driver.BindRenderbufferTexImage(ctx, rb, texImage)) {
_mesa_DeleteTextures(1, tex);
return false;
}
if (ctx->Driver.FinishRenderTexture && !rb->NeedsFinishRenderTexture) {
rb->NeedsFinishRenderTexture = true;
ctx->Driver.FinishRenderTexture(ctx, rb);
}
return true;
}
void GLAPIENTRY
_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
GLboolean layered, GLint layer, GLenum access,
GLenum format)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_image_unit *u;
if (!validate_bind_image_texture(ctx, unit, texture, level,
layered, layer, access, format))
return;
u = &ctx->ImageUnits[unit];
FLUSH_VERTICES(ctx, 0);
ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;
if (texture) {
struct gl_texture_object *t = _mesa_lookup_texture(ctx, texture);
if (!t) {
_mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(texture)");
return;
}
/* From section 8.22 "Texture Image Loads and Stores" of the OpenGL ES
* 3.1 spec:
*
* "An INVALID_OPERATION error is generated if texture is not the name
* of an immutable texture object."
*/
if (_mesa_is_gles(ctx) && !t->Immutable) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBindImageTexture(!immutable)");
return;
}
_mesa_reference_texobj(&u->TexObj, t);
} else {
_mesa_reference_texobj(&u->TexObj, NULL);
}
u->Level = level;
u->Access = access;
u->Format = format;
u->_ActualFormat = _mesa_get_shader_image_format(format);
if (u->TexObj && _mesa_tex_target_is_layered(u->TexObj->Target)) {
u->Layered = layered;
u->Layer = layer;
u->_Layer = (u->Layered ? 0 : u->Layer);
} else {
u->Layered = GL_FALSE;
u->Layer = 0;
}
if (ctx->Driver.BindImageTexture)
ctx->Driver.BindImageTexture(ctx, u, u->TexObj, level, layered,
layer, access, format);
}
/**
* See if textures are loaded in texture memory.
*
* \param n number of textures to query.
* \param texName array with the texture names.
* \param residences array which will hold the residence status.
*
* \return GL_TRUE if all textures are resident and \p residences is left unchanged,
*
* Note: we assume all textures are always resident
*/
GLboolean GLAPIENTRY
_mesa_AreTexturesResident(GLsizei n, const GLuint *texName,
GLboolean *residences)
{
GET_CURRENT_CONTEXT(ctx);
GLboolean allResident = GL_TRUE;
GLint i;
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (n < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident(n)");
return GL_FALSE;
}
if (!texName || !residences)
return GL_FALSE;
/* We only do error checking on the texture names */
for (i = 0; i < n; i++) {
struct gl_texture_object *t;
if (texName[i] == 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident");
return GL_FALSE;
}
t = _mesa_lookup_texture(ctx, texName[i]);
if (!t) {
_mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident");
return GL_FALSE;
}
}
return allResident;
}
/* This function makes a texture view without bothering with all of the API
* checks. Most of them are the same for CopyTexSubImage so checking would
* be redundant. The one major difference is that we don't check for
* whether the texture is immutable or not. However, since the view will
* be created and then immediately destroyed, this should not be a problem.
*/
static bool
make_view(struct gl_context *ctx, struct gl_texture_image *tex_image,
struct gl_texture_image **view_tex_image, GLuint *view_tex_name,
GLenum internal_format)
{
struct gl_texture_object *tex_obj = tex_image->TexObject;
struct gl_texture_object *view_tex_obj;
mesa_format tex_format;
/* Set up the new texture object */
_mesa_GenTextures(1, view_tex_name);
view_tex_obj = _mesa_lookup_texture(ctx, *view_tex_name);
if (!view_tex_obj)
return false;
tex_format = _mesa_choose_texture_format(ctx, view_tex_obj, tex_obj->Target,
0, internal_format,
GL_NONE, GL_NONE);
if (!ctx->Driver.TestProxyTexImage(ctx, tex_obj->Target, 0, tex_format,
tex_image->Width, tex_image->Height,
tex_image->Depth, 0)) {
_mesa_DeleteTextures(1, view_tex_name);
*view_tex_name = 0;
return false;
}
view_tex_obj->Target = tex_obj->Target;
*view_tex_image = _mesa_get_tex_image(ctx, view_tex_obj, tex_obj->Target, 0);
if (!*view_tex_image) {
_mesa_DeleteTextures(1, view_tex_name);
*view_tex_name = 0;
return false;
}
_mesa_init_teximage_fields(ctx, *view_tex_image,
tex_image->Width, tex_image->Height,
tex_image->Depth,
0, internal_format, tex_format);
view_tex_obj->MinLevel = tex_image->Level;
view_tex_obj->NumLevels = 1;
view_tex_obj->MinLayer = tex_obj->MinLayer;
view_tex_obj->NumLayers = tex_obj->NumLayers;
view_tex_obj->Immutable = tex_obj->Immutable;
view_tex_obj->ImmutableLevels = tex_obj->ImmutableLevels;
view_tex_obj->Target = tex_obj->Target;
if (ctx->Driver.TextureView != NULL &&
!ctx->Driver.TextureView(ctx, view_tex_obj, tex_obj)) {
_mesa_DeleteTextures(1, view_tex_name);
*view_tex_name = 0;
return false; /* driver recorded error */
}
return true;
}
static __DRIimage *
intel_create_image_from_texture(__DRIcontext *context, int target,
unsigned texture, int zoffset,
int level,
unsigned *error,
void *loaderPrivate)
{
__DRIimage *image;
struct brw_context *brw = context->driverPrivate;
struct gl_texture_object *obj;
struct intel_texture_object *iobj;
GLuint face = 0;
obj = _mesa_lookup_texture(&brw->ctx, texture);
if (!obj || obj->Target != target) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
if (target == GL_TEXTURE_CUBE_MAP)
face = zoffset;
_mesa_test_texobj_completeness(&brw->ctx, obj);
iobj = intel_texture_object(obj);
if (!obj->_BaseComplete || (level > 0 && !obj->_MipmapComplete)) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
if (level < obj->BaseLevel || level > obj->_MaxLevel) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
if (target == GL_TEXTURE_3D && obj->Image[face][level]->Depth < zoffset) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
image = calloc(1, sizeof *image);
if (image == NULL) {
*error = __DRI_IMAGE_ERROR_BAD_ALLOC;
return NULL;
}
image->internal_format = obj->Image[face][level]->InternalFormat;
image->format = obj->Image[face][level]->TexFormat;
image->data = loaderPrivate;
intel_setup_image_from_mipmap_tree(brw, image, iobj->mt, level, zoffset);
image->dri_format = driGLFormatToImageFormat(image->format);
image->has_depthstencil = iobj->mt->stencil_mt? true : false;
if (image->dri_format == MESA_FORMAT_NONE) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
free(image);
return NULL;
}
*error = __DRI_IMAGE_ERROR_SUCCESS;
return image;
}
/**
* Delete named textures.
*
* \param n number of textures to be deleted.
* \param textures array of texture IDs to be deleted.
*
* \sa glDeleteTextures().
*
* If we're about to delete a texture that's currently bound to any
* texture unit, unbind the texture first. Decrement the reference
* count on the texture object and delete it if it's zero.
* Recall that texture objects can be shared among several rendering
* contexts.
*/
void GLAPIENTRY
_mesa_DeleteTextures( GLsizei n, const GLuint *textures)
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
_mesa_debug(ctx, "glDeleteTextures %d\n", n);
FLUSH_VERTICES(ctx, 0); /* too complex */
if (!textures)
return;
for (i = 0; i < n; i++) {
if (textures[i] > 0) {
struct gl_texture_object *delObj
= _mesa_lookup_texture(ctx, textures[i]);
if (delObj) {
_mesa_lock_texture(ctx, delObj);
/* Check if texture is bound to any framebuffer objects.
* If so, unbind.
* See section 4.4.2.3 of GL_EXT_framebuffer_object.
*/
unbind_texobj_from_fbo(ctx, delObj);
/* Check if this texture is currently bound to any texture units.
* If so, unbind it.
*/
unbind_texobj_from_texunits(ctx, delObj);
_mesa_unlock_texture(ctx, delObj);
ctx->NewState |= _NEW_TEXTURE;
/* The texture _name_ is now free for re-use.
* Remove it from the hash table now.
*/
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
_mesa_HashRemove(ctx->Shared->TexObjects, delObj->Name);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
/* Unreference the texobj. If refcount hits zero, the texture
* will be deleted.
*/
_mesa_reference_texobj(&delObj, NULL);
}
}
}
}
static struct gl_texture_object *
invalidate_tex_image_error_check(struct gl_context *ctx, GLuint texture,
GLint level, const char *name)
{
/* The GL_ARB_invalidate_subdata spec says:
*
* "If <texture> is zero or is not the name of a texture, the error
* INVALID_VALUE is generated."
*
* This performs the error check in a different order than listed in the
* spec. We have to get the texture object before we can validate the
* other parameters against values in the texture object.
*/
struct gl_texture_object *const t = _mesa_lookup_texture(ctx, texture);
if (texture == 0 || t == NULL) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(texture)", name);
return NULL;
}
/* The GL_ARB_invalidate_subdata spec says:
*
* "If <level> is less than zero or greater than the base 2 logarithm
* of the maximum texture width, height, or depth, the error
* INVALID_VALUE is generated."
*/
if (level < 0 || level > t->MaxLevel) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(level)", name);
return NULL;
}
/* The GL_ARB_invalidate_subdata spec says:
*
* "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
* TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
* is not zero, the error INVALID_VALUE is generated."
*/
if (level != 0) {
switch (t->Target) {
case GL_TEXTURE_RECTANGLE:
case GL_TEXTURE_BUFFER:
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
_mesa_error(ctx, GL_INVALID_VALUE, "%s(level)", name);
return NULL;
default:
break;
}
}
return t;
}
void GLAPIENTRY
_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
GLboolean layered, GLint layer, GLenum access,
GLenum format)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_object *t = NULL;
struct gl_image_unit *u;
if (!validate_bind_image_texture(ctx, unit, texture, level,
layered, layer, access, format))
return;
u = &ctx->ImageUnits[unit];
FLUSH_VERTICES(ctx, 0);
ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;
if (texture) {
t = _mesa_lookup_texture(ctx, texture);
if (!t) {
_mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(texture)");
return;
}
_mesa_reference_texobj(&u->TexObj, t);
u->Level = level;
u->Access = access;
u->Format = format;
u->_ActualFormat = get_image_format(format);
if (_mesa_tex_target_is_layered(t->Target)) {
u->Layered = layered;
u->Layer = (layered ? 0 : layer);
} else {
u->Layered = GL_FALSE;
u->Layer = 0;
}
} else {
_mesa_reference_texobj(&u->TexObj, NULL);
}
u->_Valid = validate_image_unit(ctx, u);
if (ctx->Driver.BindImageTexture)
ctx->Driver.BindImageTexture(ctx, u, t, level, layered,
layer, access, format);
}
/**
* See if a name corresponds to a texture.
*
* \param texture texture name.
*
* \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
* otherwise.
*
* \sa glIsTexture().
*
* Calls _mesa_HashLookup().
*/
GLboolean GLAPIENTRY
_mesa_IsTexture( GLuint texture )
{
struct gl_texture_object *t;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (!texture)
return GL_FALSE;
t = _mesa_lookup_texture(ctx, texture);
/* IsTexture is true only after object has been bound once. */
return t && t->Target;
}
void r300SetTexOffset(__DRIcontext * pDRICtx, GLint texname,
unsigned long long offset, GLint depth, GLuint pitch)
{
r300ContextPtr rmesa = pDRICtx->driverPrivate;
struct gl_texture_object *tObj =
_mesa_lookup_texture(rmesa->radeon.glCtx, texname);
radeonTexObjPtr t = radeon_tex_obj(tObj);
uint32_t pitch_val;
if (!tObj)
return;
t->image_override = GL_TRUE;
if (!offset)
return;
t->bo = NULL;
t->override_offset = offset;
t->pp_txpitch &= (1 << 13) -1;
pitch_val = pitch;
switch (depth) {
case 32:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
t->pp_txfilter |= tx_table[2].filter;
pitch_val /= 4;
break;
case 24:
default:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
t->pp_txfilter |= tx_table[4].filter;
pitch_val /= 4;
break;
case 16:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
t->pp_txfilter |= tx_table[5].filter;
pitch_val /= 2;
break;
}
pitch_val--;
t->pp_txpitch |= pitch_val;
}
/**
* Delete named textures.
*
* \param n number of textures to be deleted.
* \param textures array of texture IDs to be deleted.
*
* \sa glDeleteTextures().
*
* If we're about to delete a texture that's currently bound to any
* texture unit, unbind the texture first. Decrement the reference
* count on the texture object and delete it if it's zero.
* Recall that texture objects can be shared among several rendering
* contexts.
*/
void GLAPIENTRY
_mesa_DeleteTextures( GLsizei n, const GLuint *textures)
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */
if (!textures)
return;
for (i = 0; i < n; i++) {
if (textures[i] > 0) {
struct gl_texture_object *delObj
= _mesa_lookup_texture(ctx, textures[i]);
if (delObj) {
_mesa_lock_texture(ctx, delObj);
/* Check if this texture is currently bound to any texture units.
* If so, unbind it.
*/
unbind_texobj_from_texunits(ctx, delObj);
_mesa_unlock_texture(ctx, delObj);
ctx->NewState |= _NEW_TEXTURE;
/* The texture _name_ is now free for re-use.
* Remove it from the hash table now.
*/
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
_mesa_HashRemove(ctx->Shared->TexObjects, delObj->Name);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
/* Unreference the texobj. If refcount hits zero, the texture
* will be deleted.
*/
_mesa_reference_texobj(&delObj, NULL);
}
}
}
}
void
intelSetTexOffset(__DRIcontext *pDRICtx, GLint texname,
unsigned long long offset, GLint depth, GLuint pitch)
{
struct intel_context *intel = (struct intel_context*)
((__DRIcontextPrivate*)pDRICtx->private)->driverPrivate;
struct gl_texture_object *tObj = _mesa_lookup_texture(&intel->ctx, texname);
struct intel_texture_object *intelObj = intel_texture_object(tObj);
if (!intelObj)
return;
if (intelObj->mt)
intel_miptree_release(intel, &intelObj->mt);
intelObj->imageOverride = GL_TRUE;
intelObj->depthOverride = depth;
intelObj->pitchOverride = pitch;
if (offset)
intelObj->textureOffset = offset;
}
/**
* Try to do a color or depth glBlitFramebuffer using texturing.
*
* We can do this when the src renderbuffer is actually a texture, or when the
* driver exposes BindRenderbufferTexImage().
*/
static bool
blitframebuffer_texture(struct gl_context *ctx,
const struct gl_framebuffer *readFb,
const struct gl_framebuffer *drawFb,
GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLenum filter, GLint flipX, GLint flipY,
GLboolean glsl_version, GLboolean do_depth)
{
int att_index = do_depth ? BUFFER_DEPTH : readFb->_ColorReadBufferIndex;
const struct gl_renderbuffer_attachment *readAtt =
&readFb->Attachment[att_index];
struct blit_state *blit = &ctx->Meta->Blit;
struct fb_tex_blit_state fb_tex_blit;
const GLint dstX = MIN2(dstX0, dstX1);
const GLint dstY = MIN2(dstY0, dstY1);
const GLint dstW = abs(dstX1 - dstX0);
const GLint dstH = abs(dstY1 - dstY0);
const int srcW = abs(srcX1 - srcX0);
const int srcH = abs(srcY1 - srcY0);
bool scaled_blit = false;
struct gl_texture_object *texObj;
GLuint srcLevel;
GLenum target;
struct gl_renderbuffer *rb = readAtt->Renderbuffer;
struct temp_texture *meta_temp_texture;
if (rb->NumSamples && !ctx->Extensions.ARB_texture_multisample)
return false;
_mesa_meta_fb_tex_blit_begin(ctx, &fb_tex_blit);
if (readAtt->Texture &&
(readAtt->Texture->Target == GL_TEXTURE_2D ||
readAtt->Texture->Target == GL_TEXTURE_RECTANGLE ||
readAtt->Texture->Target == GL_TEXTURE_2D_MULTISAMPLE ||
readAtt->Texture->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)) {
/* If there's a texture attached of a type we can handle, then just use
* it directly.
*/
srcLevel = readAtt->TextureLevel;
texObj = readAtt->Texture;
target = texObj->Target;
} else if (!readAtt->Texture && ctx->Driver.BindRenderbufferTexImage) {
if (!_mesa_meta_bind_rb_as_tex_image(ctx, rb, &fb_tex_blit.tempTex,
&texObj, &target))
return false;
srcLevel = 0;
if (_mesa_is_winsys_fbo(readFb)) {
GLint temp = srcY0;
srcY0 = rb->Height - srcY1;
srcY1 = rb->Height - temp;
flipY = -flipY;
}
} else {
GLenum tex_base_format;
/* Fall back to doing a CopyTexSubImage to get the destination
* renderbuffer into a texture.
*/
if (ctx->Meta->Blit.no_ctsi_fallback)
return false;
if (rb->NumSamples > 1)
return false;
if (do_depth) {
meta_temp_texture = _mesa_meta_get_temp_depth_texture(ctx);
tex_base_format = GL_DEPTH_COMPONENT;
} else {
meta_temp_texture = _mesa_meta_get_temp_texture(ctx);
tex_base_format =
_mesa_base_tex_format(ctx, rb->InternalFormat);
}
srcLevel = 0;
target = meta_temp_texture->Target;
texObj = _mesa_lookup_texture(ctx, meta_temp_texture->TexObj);
if (texObj == NULL) {
return false;
}
_mesa_meta_setup_copypix_texture(ctx, meta_temp_texture,
srcX0, srcY0,
srcW, srcH,
tex_base_format,
filter);
srcX0 = 0;
srcY0 = 0;
srcX1 = srcW;
srcY1 = srcH;
}
fb_tex_blit.baseLevelSave = texObj->BaseLevel;
fb_tex_blit.maxLevelSave = texObj->MaxLevel;
fb_tex_blit.stencilSamplingSave = texObj->StencilSampling;
scaled_blit = dstW != srcW || dstH != srcH;
if (glsl_version) {
setup_glsl_blit_framebuffer(ctx, blit, drawFb, rb, target, filter, scaled_blit,
do_depth);
}
else {
_mesa_meta_setup_ff_tnl_for_blit(ctx,
&ctx->Meta->Blit.VAO,
&ctx->Meta->Blit.buf_obj,
2);
}
/*
printf("Blit from texture!\n");
printf(" srcAtt %p dstAtt %p\n", readAtt, drawAtt);
printf(" srcTex %p dstText %p\n", texObj, drawAtt->Texture);
*/
fb_tex_blit.sampler = _mesa_meta_setup_sampler(ctx, texObj, target, filter,
srcLevel);
/* Always do our blits with no net sRGB decode or encode.
*
* However, if both the src and dst can be srgb decode/encoded, enable them
* so that we do any blending (from scaling or from MSAA resolves) in the
* right colorspace.
*
* Our choice of not doing any net encode/decode is from the GL 3.0
* specification:
*
* "Blit operations bypass the fragment pipeline. The only fragment
* operations which affect a blit are the pixel ownership test and the
* scissor test."
*
* The GL 4.4 specification disagrees and says that the sRGB part of the
* fragment pipeline applies, but this was found to break applications.
*/
if (ctx->Extensions.EXT_texture_sRGB_decode) {
if (_mesa_get_format_color_encoding(rb->Format) == GL_SRGB &&
drawFb->Visual.sRGBCapable) {
_mesa_SamplerParameteri(fb_tex_blit.sampler,
GL_TEXTURE_SRGB_DECODE_EXT, GL_DECODE_EXT);
_mesa_set_framebuffer_srgb(ctx, GL_TRUE);
} else {
_mesa_SamplerParameteri(fb_tex_blit.sampler,
GL_TEXTURE_SRGB_DECODE_EXT,
GL_SKIP_DECODE_EXT);
/* set_framebuffer_srgb was set by _mesa_meta_begin(). */
}
}
if (!glsl_version) {
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
_mesa_set_enable(ctx, target, GL_TRUE);
}
/* Prepare vertex data (the VBO was previously created and bound) */
{
struct vertex verts[4];
GLfloat s0, t0, s1, t1;
if (target == GL_TEXTURE_2D) {
const struct gl_texture_image *texImage
= _mesa_select_tex_image(texObj, target, srcLevel);
s0 = srcX0 / (float) texImage->Width;
s1 = srcX1 / (float) texImage->Width;
t0 = srcY0 / (float) texImage->Height;
t1 = srcY1 / (float) texImage->Height;
}
else {
assert(target == GL_TEXTURE_RECTANGLE_ARB ||
target == GL_TEXTURE_2D_MULTISAMPLE ||
target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
s0 = (float) srcX0;
s1 = (float) srcX1;
t0 = (float) srcY0;
t1 = (float) srcY1;
}
/* Silence valgrind warnings about reading uninitialized stack. */
memset(verts, 0, sizeof(verts));
/* setup vertex positions */
verts[0].x = -1.0F * flipX;
verts[0].y = -1.0F * flipY;
verts[1].x = 1.0F * flipX;
verts[1].y = -1.0F * flipY;
verts[2].x = 1.0F * flipX;
verts[2].y = 1.0F * flipY;
verts[3].x = -1.0F * flipX;
verts[3].y = 1.0F * flipY;
verts[0].tex[0] = s0;
verts[0].tex[1] = t0;
verts[0].tex[2] = readAtt->Zoffset;
verts[1].tex[0] = s1;
verts[1].tex[1] = t0;
verts[1].tex[2] = readAtt->Zoffset;
verts[2].tex[0] = s1;
verts[2].tex[1] = t1;
verts[2].tex[2] = readAtt->Zoffset;
verts[3].tex[0] = s0;
verts[3].tex[1] = t1;
verts[3].tex[2] = readAtt->Zoffset;
_mesa_buffer_sub_data(ctx, blit->buf_obj, 0, sizeof(verts), verts,
__func__);
}
/* setup viewport */
_mesa_set_viewport(ctx, 0, dstX, dstY, dstW, dstH);
_mesa_ColorMask(!do_depth, !do_depth, !do_depth, !do_depth);
_mesa_set_enable(ctx, GL_DEPTH_TEST, do_depth);
_mesa_DepthMask(do_depth);
_mesa_DepthFunc(GL_ALWAYS);
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
_mesa_meta_fb_tex_blit_end(ctx, target, &fb_tex_blit);
return true;
}
/**
* Bind a named texture to a texturing target.
*
* \param target texture target.
* \param texName texture name.
*
* \sa glBindTexture().
*
* Determines the old texture object bound and returns immediately if rebinding
* the same texture. Get the current texture which is either a default texture
* if name is null, a named texture from the hash, or a new texture if the
* given texture name is new. Increments its reference count, binds it, and
* calls dd_function_table::BindTexture. Decrements the old texture reference
* count and deletes it if it reaches zero.
*/
void GLAPIENTRY
_mesa_BindTexture( GLenum target, GLuint texName )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *newTexObj = NULL;
GLint targetIndex;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
_mesa_debug(ctx, "glBindTexture %s %d\n",
_mesa_lookup_enum_by_nr(target), (GLint) texName);
targetIndex = target_enum_to_index(ctx, target);
if (targetIndex < 0) {
_mesa_error(ctx, GL_INVALID_ENUM, "glBindTexture(target)");
return;
}
assert(targetIndex < NUM_TEXTURE_TARGETS);
/*
* Get pointer to new texture object (newTexObj)
*/
if (texName == 0) {
/* Use a default texture object */
newTexObj = ctx->Shared->DefaultTex[targetIndex];
}
else {
/* non-default texture object */
newTexObj = _mesa_lookup_texture(ctx, texName);
if (newTexObj) {
/* error checking */
if (newTexObj->Target != 0 && newTexObj->Target != target) {
/* the named texture object's target doesn't match the given target */
_mesa_error( ctx, GL_INVALID_OPERATION,
"glBindTexture(target mismatch)" );
return;
}
if (newTexObj->Target == 0) {
finish_texture_init(ctx, target, newTexObj);
}
}
else {
if (ctx->API == API_OPENGL_CORE) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBindTexture");
return;
}
/* if this is a new texture id, allocate a texture object now */
newTexObj = ctx->Driver.NewTextureObject(ctx, texName, target);
if (!newTexObj) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindTexture");
return;
}
/* and insert it into hash table */
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
_mesa_HashInsert(ctx->Shared->TexObjects, texName, newTexObj);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
}
newTexObj->Target = target;
}
assert(valid_texture_object(newTexObj));
/* Check if this texture is only used by this context and is already bound.
* If so, just return.
*/
{
GLboolean early_out;
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
early_out = ((ctx->Shared->RefCount == 1)
&& (newTexObj == texUnit->CurrentTex[targetIndex]));
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
if (early_out) {
return;
}
}
/* flush before changing binding */
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
/* Do the actual binding. The refcount on the previously bound
* texture object will be decremented. It'll be deleted if the
* count hits zero.
*/
_mesa_reference_texobj(&texUnit->CurrentTex[targetIndex], newTexObj);
ASSERT(texUnit->CurrentTex[targetIndex]);
/* Pass BindTexture call to device driver */
if (ctx->Driver.BindTexture)
ctx->Driver.BindTexture(ctx, target, newTexObj);
}
static __DRIimage *
dri2_create_from_texture(__DRIcontext *context, int target, unsigned texture,
int depth, int level, unsigned *error,
void *loaderPrivate)
{
__DRIimage *img;
struct gl_context *ctx = ((struct st_context *)dri_context(context)->st)->ctx;
struct gl_texture_object *obj;
struct pipe_resource *tex;
GLuint face = 0;
obj = _mesa_lookup_texture(ctx, texture);
if (!obj || obj->Target != target) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
tex = st_get_texobj_resource(obj);
if (!tex) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
if (target == GL_TEXTURE_CUBE_MAP)
face = depth;
_mesa_test_texobj_completeness(ctx, obj);
if (!obj->_BaseComplete || (level > 0 && !obj->_MipmapComplete)) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
return NULL;
}
if (level < obj->BaseLevel || level > obj->_MaxLevel) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
if (target == GL_TEXTURE_3D && obj->Image[face][level]->Depth < depth) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
img = CALLOC_STRUCT(__DRIimageRec);
if (!img) {
*error = __DRI_IMAGE_ERROR_BAD_ALLOC;
return NULL;
}
img->level = level;
img->layer = depth;
img->dri_format = driGLFormatToImageFormat(obj->Image[face][level]->TexFormat);
img->loader_private = loaderPrivate;
if (img->dri_format == __DRI_IMAGE_FORMAT_NONE) {
*error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
free(img);
return NULL;
}
pipe_resource_reference(&img->texture, tex);
*error = __DRI_IMAGE_ERROR_SUCCESS;
return img;
}
static GLintptr
register_surface(struct gl_context *ctx, GLboolean isOutput,
const GLvoid *vdpSurface, GLenum target,
GLsizei numTextureNames, const GLuint *textureNames)
{
struct vdp_surface *surf;
int i;
if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
_mesa_error(ctx, GL_INVALID_OPERATION, "VDPAURegisterSurfaceNV");
return (GLintptr)NULL;
}
if (target != GL_TEXTURE_2D && target != GL_TEXTURE_RECTANGLE) {
_mesa_error(ctx, GL_INVALID_ENUM, "VDPAURegisterSurfaceNV");
return (GLintptr)NULL;
}
if (target == GL_TEXTURE_RECTANGLE && !ctx->Extensions.NV_texture_rectangle) {
_mesa_error(ctx, GL_INVALID_ENUM, "VDPAURegisterSurfaceNV");
return (GLintptr)NULL;
}
surf = CALLOC_STRUCT( vdp_surface );
if (surf == NULL) {
_mesa_error_no_memory("VDPAURegisterSurfaceNV");
return (GLintptr)NULL;
}
surf->vdpSurface = vdpSurface;
surf->target = target;
surf->access = GL_READ_WRITE;
surf->state = GL_SURFACE_REGISTERED_NV;
surf->output = isOutput;
for (i = 0; i < numTextureNames; ++i) {
struct gl_texture_object *tex;
tex = _mesa_lookup_texture(ctx, textureNames[i]);
if (tex == NULL) {
free(surf);
_mesa_error(ctx, GL_INVALID_OPERATION,
"VDPAURegisterSurfaceNV(texture ID not found)");
return (GLintptr)NULL;
}
_mesa_lock_texture(ctx, tex);
if (tex->Immutable) {
_mesa_unlock_texture(ctx, tex);
free(surf);
_mesa_error(ctx, GL_INVALID_OPERATION,
"VDPAURegisterSurfaceNV(texture is immutable)");
return (GLintptr)NULL;
}
if (tex->Target == 0)
tex->Target = target;
else if (tex->Target != target) {
_mesa_unlock_texture(ctx, tex);
free(surf);
_mesa_error(ctx, GL_INVALID_OPERATION,
"VDPAURegisterSurfaceNV(target mismatch)");
return (GLintptr)NULL;
}
/* This will disallow respecifying the storage. */
tex->Immutable = GL_TRUE;
_mesa_unlock_texture(ctx, tex);
_mesa_reference_texobj(&surf->textures[i], tex);
}
_mesa_set_add(ctx->vdpSurfaces, surf);
return (GLintptr)surf;
}
/**
* Prepare the source or destination resource, including:
* - Error checking
* - Creating texture wrappers for renderbuffers
* \param name the texture or renderbuffer name
* \param target GL_TEXTURE target or GL_RENDERBUFFER. For the later, will
* be changed to a compatible GL_TEXTURE target.
* \param level mipmap level
* \param tex_obj returns a pointer to a texture object
* \param tex_image returns a pointer to a texture image
* \param tmp_tex returns temporary texture object name
* \return true if success, false if error
*/
static bool
prepare_target(struct gl_context *ctx, GLuint name, GLenum *target, int level,
struct gl_texture_object **tex_obj,
struct gl_texture_image **tex_image, GLuint *tmp_tex,
const char *dbg_prefix)
{
if (name == 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sName = %d)", dbg_prefix, name);
return false;
}
/*
* INVALID_ENUM is generated
* * if either <srcTarget> or <dstTarget>
* - is not RENDERBUFFER or a valid non-proxy texture target
* - is TEXTURE_BUFFER, or
* - is one of the cubemap face selectors described in table 3.17,
*/
switch (*target) {
case GL_RENDERBUFFER:
/* Not a texture target, but valid */
case GL_TEXTURE_1D:
case GL_TEXTURE_1D_ARRAY:
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_RECTANGLE:
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
/* These are all valid */
break;
case GL_TEXTURE_EXTERNAL_OES:
/* Only exists in ES */
case GL_TEXTURE_BUFFER:
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glCopyImageSubData(%sTarget = %s)", dbg_prefix,
_mesa_lookup_enum_by_nr(*target));
return false;
}
if (*target == GL_RENDERBUFFER) {
struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, name);
if (!rb) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sName = %u)", dbg_prefix, name);
return false;
}
if (!rb->Name) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(%sName incomplete)", dbg_prefix);
return false;
}
if (level != 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sLevel = %u)", dbg_prefix, level);
return false;
}
if (rb->NumSamples > 1)
*target = GL_TEXTURE_2D_MULTISAMPLE;
else
*target = GL_TEXTURE_2D;
*tmp_tex = 0;
_mesa_GenTextures(1, tmp_tex);
if (*tmp_tex == 0)
return false; /* Error already set by GenTextures */
_mesa_BindTexture(*target, *tmp_tex);
*tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
*tex_image = _mesa_get_tex_image(ctx, *tex_obj, *target, 0);
if (!ctx->Driver.BindRenderbufferTexImage(ctx, rb, *tex_image)) {
_mesa_problem(ctx, "Failed to create texture from renderbuffer");
return false;
}
if (ctx->Driver.FinishRenderTexture && !rb->NeedsFinishRenderTexture) {
rb->NeedsFinishRenderTexture = true;
ctx->Driver.FinishRenderTexture(ctx, rb);
}
} else {
*tex_obj = _mesa_lookup_texture(ctx, name);
if (!*tex_obj) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sName = %u)", dbg_prefix, name);
return false;
}
_mesa_test_texobj_completeness(ctx, *tex_obj);
if (!(*tex_obj)->_BaseComplete ||
(level != 0 && !(*tex_obj)->_MipmapComplete)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(%sName incomplete)", dbg_prefix);
return false;
}
if ((*tex_obj)->Target != *target) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glCopyImageSubData(%sTarget = %s)", dbg_prefix,
_mesa_lookup_enum_by_nr(*target));
return false;
}
if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sLevel = %d)", dbg_prefix, level);
return false;
}
*tex_image = _mesa_select_tex_image(*tex_obj, *target, level);
if (!*tex_image) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sLevel = %u)", dbg_prefix, level);
return false;
}
}
return true;
}
static struct gl_texture_image *
create_texture_for_pbo(struct gl_context *ctx, bool create_pbo,
GLenum pbo_target, int width, int height,
GLenum format, GLenum type, const void *pixels,
const struct gl_pixelstore_attrib *packing,
GLuint *tmp_pbo, GLuint *tmp_tex)
{
uint32_t pbo_format;
GLenum internal_format;
unsigned row_stride;
struct gl_buffer_object *buffer_obj;
struct gl_texture_object *tex_obj;
struct gl_texture_image *tex_image;
bool read_only;
if (packing->SwapBytes ||
packing->LsbFirst ||
packing->Invert)
return NULL;
pbo_format = _mesa_format_from_format_and_type(format, type);
if (_mesa_format_is_mesa_array_format(pbo_format))
pbo_format = _mesa_format_from_array_format(pbo_format);
if (!pbo_format || !ctx->TextureFormatSupported[pbo_format])
return NULL;
/* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */
pixels = _mesa_image_address3d(packing, pixels,
width, height, format, type, 0, 0, 0);
row_stride = _mesa_image_row_stride(packing, width, format, type);
if (_mesa_is_bufferobj(packing->BufferObj)) {
*tmp_pbo = 0;
buffer_obj = packing->BufferObj;
} else {
bool is_pixel_pack = pbo_target == GL_PIXEL_PACK_BUFFER;
assert(create_pbo);
_mesa_GenBuffers(1, tmp_pbo);
/* We are not doing this inside meta_begin/end. However, we know the
* client doesn't have the given target bound, so we can go ahead and
* squash it. We'll set it back when we're done.
*/
_mesa_BindBuffer(pbo_target, *tmp_pbo);
/* In case of GL_PIXEL_PACK_BUFFER, pass null pointer for the pixel
* data to avoid unnecessary data copying in _mesa_BufferData().
*/
if (is_pixel_pack)
_mesa_BufferData(pbo_target, row_stride * height, NULL,
GL_STREAM_READ);
else
_mesa_BufferData(pbo_target, row_stride * height, pixels,
GL_STREAM_DRAW);
buffer_obj = packing->BufferObj;
pixels = NULL;
_mesa_BindBuffer(pbo_target, 0);
}
_mesa_GenTextures(1, tmp_tex);
tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
_mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
/* This must be set after _mesa_initialize_texture_object, not before. */
tex_obj->Immutable = GL_TRUE;
/* This is required for interactions with ARB_texture_view. */
tex_obj->NumLayers = 1;
internal_format = _mesa_get_format_base_format(pbo_format);
tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
_mesa_init_teximage_fields(ctx, tex_image, width, height, 1,
0, internal_format, pbo_format);
read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
buffer_obj,
(intptr_t)pixels,
row_stride,
read_only)) {
_mesa_DeleteTextures(1, tmp_tex);
_mesa_DeleteBuffers(1, tmp_pbo);
return NULL;
}
return tex_image;
}
static struct gl_texture_image *
create_texture_for_pbo(struct gl_context *ctx,
bool create_pbo, GLenum pbo_target,
int dims, int width, int height, int depth,
GLenum format, GLenum type, const void *pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_buffer_object **tmp_pbo, GLuint *tmp_tex)
{
uint32_t pbo_format;
GLenum internal_format;
unsigned row_stride;
struct gl_buffer_object *buffer_obj;
struct gl_texture_object *tex_obj;
struct gl_texture_image *tex_image;
bool read_only;
if (packing->SwapBytes ||
packing->LsbFirst ||
packing->Invert)
return NULL;
pbo_format = _mesa_format_from_format_and_type(format, type);
if (_mesa_format_is_mesa_array_format(pbo_format))
pbo_format = _mesa_format_from_array_format(pbo_format);
if (!pbo_format || !ctx->TextureFormatSupported[pbo_format])
return NULL;
/* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */
uint32_t first_pixel = _mesa_image_offset(dims, packing, width, height,
format, type,
0, 0, 0);
uint32_t last_pixel = _mesa_image_offset(dims, packing, width, height,
format, type,
depth-1, height-1, width);
row_stride = _mesa_image_row_stride(packing, width, format, type);
if (_mesa_is_bufferobj(packing->BufferObj)) {
*tmp_pbo = NULL;
buffer_obj = packing->BufferObj;
first_pixel += (intptr_t)pixels;
} else {
bool is_pixel_pack = pbo_target == GL_PIXEL_PACK_BUFFER;
assert(create_pbo);
*tmp_pbo = ctx->Driver.NewBufferObject(ctx, 0xDEADBEEF);
if (*tmp_pbo == NULL)
return NULL;
/* In case of GL_PIXEL_PACK_BUFFER, pass null pointer for the pixel
* data to avoid unnecessary data copying in _mesa_buffer_data.
*/
if (is_pixel_pack)
_mesa_buffer_data(ctx, *tmp_pbo, GL_NONE,
last_pixel - first_pixel,
NULL,
GL_STREAM_READ,
__func__);
else
_mesa_buffer_data(ctx, *tmp_pbo, GL_NONE,
last_pixel - first_pixel,
(char *)pixels + first_pixel,
GL_STREAM_DRAW,
__func__);
buffer_obj = *tmp_pbo;
first_pixel = 0;
}
_mesa_GenTextures(1, tmp_tex);
tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
_mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
/* This must be set after _mesa_initialize_texture_object, not before. */
tex_obj->Immutable = GL_TRUE;
/* This is required for interactions with ARB_texture_view. */
tex_obj->NumLayers = 1;
internal_format = _mesa_get_format_base_format(pbo_format);
/* The texture is addressed as a single very-tall image, so we
* need to pack the multiple image depths together taking the
* inter-image padding into account.
*/
int image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
int full_height = image_height * (depth - 1) + height;
tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
_mesa_init_teximage_fields(ctx, tex_image, width, full_height, 1,
0, internal_format, pbo_format);
read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
buffer_obj,
first_pixel,
row_stride,
read_only)) {
_mesa_DeleteTextures(1, tmp_tex);
_mesa_reference_buffer_object(ctx, tmp_pbo, NULL);
return NULL;
}
return tex_image;
}
/**
* Common code called by glFramebufferTexture1D/2D/3DEXT().
*/
static void
framebuffer_texture(GLcontext *ctx, const char *caller, GLenum target,
GLenum attachment, GLenum textarget, GLuint texture,
GLint level, GLint zoffset)
{
struct gl_renderbuffer_attachment *att;
struct gl_texture_object *texObj = NULL;
struct gl_framebuffer *fb;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (target != GL_FRAMEBUFFER_EXT) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferTexture%sEXT(target)", caller);
return;
}
fb = ctx->DrawBuffer;
ASSERT(fb);
/* check framebuffer binding */
if (fb->Name == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glFramebufferTexture%sEXT", caller);
return;
}
/* The textarget, level, and zoffset parameters are only validated if
* texture is non-zero.
*/
if (texture) {
GLboolean err = GL_TRUE;
texObj = _mesa_lookup_texture(ctx, texture);
if (texObj != NULL) {
if (textarget == 0) {
err = (texObj->Target != GL_TEXTURE_3D) &&
(texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
(texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
}
else {
err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
? !IS_CUBE_FACE(textarget)
: (texObj->Target != textarget);
}
}
if (err) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glFramebufferTexture%sEXT(texture target mismatch)",
caller);
return;
}
if (texObj->Target == GL_TEXTURE_3D) {
const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
if (zoffset < 0 || zoffset >= maxSize) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glFramebufferTexture%sEXT(zoffset)", caller);
return;
}
}
else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
(texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glFramebufferTexture%sEXT(layer)", caller);
return;
}
}
if ((level < 0) ||
(level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glFramebufferTexture%sEXT(level)", caller);
return;
}
}
att = _mesa_get_attachment(ctx, fb, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferTexture%sEXT(attachment)", caller);
return;
}
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
/* The above doesn't fully flush the drivers in the way that a
* glFlush does, but that is required here:
*/
if (ctx->Driver.Flush)
ctx->Driver.Flush(ctx);
_glthread_LOCK_MUTEX(fb->Mutex);
if (texObj) {
_mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
level, zoffset);
}
else {
_mesa_remove_attachment(ctx, att);
}
_glthread_UNLOCK_MUTEX(fb->Mutex);
}
/**
* glTextureView (ARB_texture_view)
* If an error is found, record it with _mesa_error()
* \return none.
*/
void GLAPIENTRY
_mesa_TextureView(GLuint texture, GLenum target, GLuint origtexture,
GLenum internalformat,
GLuint minlevel, GLuint numlevels,
GLuint minlayer, GLuint numlayers)
{
struct gl_texture_object *texObj;
struct gl_texture_object *origTexObj;
struct gl_texture_image *origTexImage;
GLuint newViewMinLevel, newViewMinLayer;
GLuint newViewNumLevels, newViewNumLayers;
GLsizei width, height, depth;
mesa_format texFormat;
GLboolean sizeOK, dimensionsOK;
GLenum faceTarget;
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE))
_mesa_debug(ctx, "glTextureView %d %s %d %s %d %d %d %d\n",
texture, _mesa_lookup_enum_by_nr(target), origtexture,
_mesa_lookup_enum_by_nr(internalformat),
minlevel, numlevels, minlayer, numlayers);
if (origtexture == 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(origtexture = %u)", origtexture);
return;
}
/* Need original texture information to validate arguments */
origTexObj = _mesa_lookup_texture(ctx, origtexture);
/* If <origtexture> is not the name of a texture, INVALID_VALUE is generated. */
if (!origTexObj) {
_mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(origtexture = %u)", origtexture);
return;
}
/* If <origtexture>'s TEXTURE_IMMUTABLE_FORMAT value is not TRUE,
* INVALID_OPERATION is generated.
*/
if (!origTexObj->Immutable) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glTextureView(origtexture not immutable)");
return;
}
/* If <texture> is 0, INVALID_VALUE is generated. */
if (texture == 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(texture = 0)");
return;
}
/* If <texture> is not a valid name returned by GenTextures,
* the error INVALID_OPERATION is generated.
*/
texObj = _mesa_lookup_texture(ctx, texture);
if (texObj == NULL) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glTextureView(texture = %u non-gen name)", texture);
return;
}
/* If <texture> has already been bound and given a target, then
* the error INVALID_OPERATION is generated.
*/
if (texObj->Target) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glTextureView(texture = %u already bound)", texture);
return;
}
/* Check for compatible target */
if (!target_valid(ctx, origTexObj->Target, target)) {
return; /* error was recorded */
}
/* minlevel and minlayer are relative to the view of origtexture
* If minlevel or minlayer is greater than level or layer, respectively,
* of origtexture return INVALID_VALUE.
*/
newViewMinLevel = origTexObj->MinLevel + minlevel;
newViewMinLayer = origTexObj->MinLayer + minlayer;
if (newViewMinLevel >= (origTexObj->MinLevel + origTexObj->NumLevels)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glTextureView(new minlevel (%d) > orig minlevel (%d) + orig numlevels (%d))",
newViewMinLevel, origTexObj->MinLevel, origTexObj->NumLevels);
return;
}
if (newViewMinLayer >= (origTexObj->MinLayer + origTexObj->NumLayers)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glTextureView(new minlayer (%d) > orig minlayer (%d) + orig numlayers (%d))",
newViewMinLayer, origTexObj->MinLayer, origTexObj->NumLayers);
return;
}
if (!_mesa_texture_view_compatible_format(ctx,
origTexObj->Image[0][0]->InternalFormat,
internalformat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glTextureView(internalformat %s not compatible with origtexture %s)",
_mesa_lookup_enum_by_nr(internalformat),
_mesa_lookup_enum_by_nr(origTexObj->Image[0][0]->InternalFormat));
return;
}
texFormat = _mesa_choose_texture_format(ctx, texObj, target, 0,
internalformat, GL_NONE, GL_NONE);
assert(texFormat != MESA_FORMAT_NONE);
if (texFormat == MESA_FORMAT_NONE) return;
newViewNumLevels = MIN2(numlevels, origTexObj->NumLevels - minlevel);
newViewNumLayers = MIN2(numlayers, origTexObj->NumLayers - minlayer);
faceTarget = origTexObj->Target;
if (faceTarget == GL_TEXTURE_CUBE_MAP)
faceTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + minlayer;
/* Get a reference to what will become this View's base level */
origTexImage = _mesa_select_tex_image(origTexObj, faceTarget, minlevel);
width = origTexImage->Width;
height = origTexImage->Height;
depth = origTexImage->Depth;
/* Adjust width, height, depth to be appropriate for new target */
switch (target) {
case GL_TEXTURE_1D:
height = 1;
break;
case GL_TEXTURE_3D:
break;
case GL_TEXTURE_1D_ARRAY:
height = (GLsizei) newViewNumLayers;
break;
case GL_TEXTURE_2D:
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_RECTANGLE:
case GL_TEXTURE_CUBE_MAP:
depth = 1;
break;
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
depth = newViewNumLayers;
break;
}
/* If the dimensions of the original texture are larger than the maximum
* supported dimensions of the new target, the error INVALID_OPERATION is
* generated. For example, if the original texture has a TEXTURE_2D_ARRAY
* target and its width is greater than MAX_CUBE_MAP_TEXTURE_SIZE, an error
* will be generated if TextureView is called to create a TEXTURE_CUBE_MAP
* view.
*/
dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, 0,
width, height, depth, 0);
if (!dimensionsOK) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glTextureView(invalid width or height or depth)");
return;
}
sizeOK = ctx->Driver.TestProxyTexImage(ctx, target, 0, texFormat,
width, height, depth, 0);
if (!sizeOK) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glTextureView(invalid texture size)");
return;
}
/* If <target> is TEXTURE_1D, TEXTURE_2D, TEXTURE_3D, TEXTURE_RECTANGLE,
* or TEXTURE_2D_MULTISAMPLE and <numlayers> does not equal 1, the error
* INVALID_VALUE is generated.
*/
switch (target) {
case GL_TEXTURE_1D:
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
case GL_TEXTURE_RECTANGLE:
case GL_TEXTURE_2D_MULTISAMPLE:
if (numlayers != 1) {
_mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(numlayers %d != 1)", numlayers);
return;
}
break;
case GL_TEXTURE_CUBE_MAP:
/* If the new texture's target is TEXTURE_CUBE_MAP, the clamped <numlayers>
* must be equal to 6.
*/
if (newViewNumLayers != 6) {
_mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(clamped numlayers %d != 6)",
newViewNumLayers);
return;
}
break;
case GL_TEXTURE_CUBE_MAP_ARRAY:
/* If the new texture's target is TEXTURE_CUBE_MAP_ARRAY,
* then <numlayers> counts layer-faces rather than layers,
* and the clamped <numlayers> must be a multiple of 6.
* Otherwise, the error INVALID_VALUE is generated.
*/
if ((newViewNumLayers % 6) != 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glTextureView(clamped numlayers %d is not a multiple of 6)",
newViewNumLayers);
return;
}
break;
}
/* If the new texture's target is TEXTURE_CUBE_MAP or
* TEXTURE_CUBE_MAP_ARRAY, the width and height of the original texture's
* levels must be equal otherwise the error INVALID_OPERATION is generated.
*/
if ((target == GL_TEXTURE_CUBE_MAP || target == GL_TEXTURE_CUBE_MAP_ARRAY) &&
(origTexImage->Width != origTexImage->Height)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glTextureView(origtexture width (%d) != height (%d))",
origTexImage->Width, origTexImage->Height);
return;
}
/* When the original texture's target is TEXTURE_CUBE_MAP, the layer
* parameters are interpreted in the same order as if it were a
* TEXTURE_CUBE_MAP_ARRAY with 6 layer-faces.
*/
/* If the internal format does not exactly match the internal format of the
* original texture, the contents of the memory are reinterpreted in the
* same manner as for image bindings described in
* section 3.9.20 (Texture Image Loads and Stores).
*/
/* TEXTURE_BASE_LEVEL and TEXTURE_MAX_LEVEL are interpreted
* relative to the view and not relative to the original data store.
*/
if (!initialize_texture_fields(ctx, target, texObj, newViewNumLevels,
width, height, depth,
internalformat, texFormat)) {
return; /* Already recorded error */
}
texObj->MinLevel = newViewMinLevel;
texObj->MinLayer = newViewMinLayer;
texObj->NumLevels = newViewNumLevels;
texObj->NumLayers = newViewNumLayers;
texObj->Immutable = GL_TRUE;
texObj->ImmutableLevels = origTexObj->ImmutableLevels;
texObj->Target = target;
if (ctx->Driver.TextureView != NULL && !ctx->Driver.TextureView(ctx, texObj, origTexObj)) {
return; /* driver recorded error */
}
}
/**
* Prepare the source or destination resource. This involves error
* checking and returning the relevant gl_texture_image or gl_renderbuffer.
* Note that one of the resulting tex_image or renderbuffer pointers will be
* NULL and the other will be non-null.
*
* \param name the texture or renderbuffer name
* \param target One of GL_TEXTURE_x target or GL_RENDERBUFFER
* \param level mipmap level
* \param z src or dest Z
* \param depth number of slices/faces/layers to copy
* \param tex_image returns a pointer to a texture image
* \param renderbuffer returns a pointer to a renderbuffer
* \return true if success, false if error
*/
static bool
prepare_target(struct gl_context *ctx, GLuint name, GLenum target,
int level, int z, int depth,
struct gl_texture_image **tex_image,
struct gl_renderbuffer **renderbuffer,
mesa_format *format,
GLenum *internalFormat,
GLuint *width,
GLuint *height,
GLuint *num_samples,
const char *dbg_prefix)
{
if (name == 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sName = %d)", dbg_prefix, name);
return false;
}
/*
* INVALID_ENUM is generated
* * if either <srcTarget> or <dstTarget>
* - is not RENDERBUFFER or a valid non-proxy texture target
* - is TEXTURE_BUFFER, or
* - is one of the cubemap face selectors described in table 3.17,
*/
switch (target) {
case GL_RENDERBUFFER:
/* Not a texture target, but valid */
case GL_TEXTURE_1D:
case GL_TEXTURE_1D_ARRAY:
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_RECTANGLE:
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
/* These are all valid */
break;
case GL_TEXTURE_EXTERNAL_OES:
/* Only exists in ES */
case GL_TEXTURE_BUFFER:
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glCopyImageSubData(%sTarget = %s)", dbg_prefix,
_mesa_enum_to_string(target));
return false;
}
if (target == GL_RENDERBUFFER) {
struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, name);
if (!rb) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sName = %u)", dbg_prefix, name);
return false;
}
if (!rb->Name) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(%sName incomplete)", dbg_prefix);
return false;
}
if (level != 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sLevel = %u)", dbg_prefix, level);
return false;
}
*renderbuffer = rb;
*format = rb->Format;
*internalFormat = rb->InternalFormat;
*width = rb->Width;
*height = rb->Height;
*num_samples = rb->NumSamples;
*tex_image = NULL;
} else {
struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, name);
if (!texObj) {
/*
* From GL_ARB_copy_image specification:
* "INVALID_VALUE is generated if either <srcName> or <dstName> does
* not correspond to a valid renderbuffer or texture object according
* to the corresponding target parameter."
*/
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sName = %u)", dbg_prefix, name);
return false;
}
_mesa_test_texobj_completeness(ctx, texObj);
if (!texObj->_BaseComplete ||
(level != 0 && !texObj->_MipmapComplete)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(%sName incomplete)", dbg_prefix);
return false;
}
/* Note that target will not be a cube face name */
if (texObj->Target != target) {
/*
* From GL_ARB_copy_image_specification:
* "INVALID_ENUM is generated if the target does not match the type
* of the object."
*/
_mesa_error(ctx, GL_INVALID_ENUM,
"glCopyImageSubData(%sTarget = %s)", dbg_prefix,
_mesa_enum_to_string(target));
return false;
}
if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sLevel = %d)", dbg_prefix, level);
return false;
}
if (target == GL_TEXTURE_CUBE_MAP) {
int i;
assert(z < MAX_FACES); /* should have been caught earlier */
/* make sure all the cube faces are present */
for (i = 0; i < depth; i++) {
if (!texObj->Image[z+i][level]) {
/* missing cube face */
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(missing cube face)");
return false;
}
}
*tex_image = texObj->Image[z][level];
}
else {
*tex_image = _mesa_select_tex_image(texObj, target, level);
}
if (!*tex_image) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(%sLevel = %u)", dbg_prefix, level);
return false;
}
*renderbuffer = NULL;
*format = (*tex_image)->TexFormat;
*internalFormat = (*tex_image)->InternalFormat;
*width = (*tex_image)->Width;
*height = (*tex_image)->Height;
*num_samples = (*tex_image)->NumSamples;
}
return true;
}
