/**
* Called by ctx->Driver.RenderTexture
*/
static void
st_render_texture(struct gl_context *ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct gl_renderbuffer *rb = att->Renderbuffer;
struct st_renderbuffer *strb = st_renderbuffer(rb);
struct pipe_resource *pt;
if (!st_finalize_texture(ctx, pipe, att->Texture))
return;
pt = st_get_texobj_resource(att->Texture);
assert(pt);
/* point renderbuffer at texobject */
strb->is_rtt = TRUE;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
strb->rtt_layered = att->Layered;
pipe_resource_reference(&strb->texture, pt);
pipe_surface_release(pipe, &strb->surface);
st_update_renderbuffer_surface(st, strb);
strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
/* Invalidate buffer state so that the pipe's framebuffer state
* gets updated.
* That's where the new renderbuffer (which we just created) gets
* passed to the pipe as a (color/depth) render target.
*/
st_invalidate_state(ctx, _NEW_BUFFERS);
/* Need to trigger a call to update_framebuffer() since we just
* attached a new renderbuffer.
*/
ctx->NewState |= _NEW_BUFFERS;
}
/**
* Called via ctx->Driver.GenerateMipmap().
*/
void
st_generate_mipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct st_context *st = st_context(ctx);
struct st_texture_object *stObj = st_texture_object(texObj);
struct pipe_resource *pt = st_get_texobj_resource(texObj);
const uint baseLevel = texObj->BaseLevel;
uint lastLevel, first_layer, last_layer;
uint dstLevel;
if (!pt)
return;
/* not sure if this ultimately actually should work,
but we're not supporting multisampled textures yet. */
assert(pt->nr_samples < 2);
/* find expected last mipmap level to generate*/
lastLevel = compute_num_levels(ctx, texObj, target) - 1;
if (lastLevel == 0)
return;
/* The texture isn't in a "complete" state yet so set the expected
* lastLevel here, since it won't get done in st_finalize_texture().
*/
stObj->lastLevel = lastLevel;
if (pt->last_level < lastLevel) {
/* The current gallium texture doesn't have space for all the
* mipmap levels we need to generate. So allocate a new texture.
*/
struct pipe_resource *oldTex = stObj->pt;
/* create new texture with space for more levels */
stObj->pt = st_texture_create(st,
oldTex->target,
oldTex->format,
lastLevel,
oldTex->width0,
oldTex->height0,
oldTex->depth0,
oldTex->array_size,
0,
oldTex->bind);
/* This will copy the old texture's base image into the new texture
* which we just allocated.
*/
st_finalize_texture(ctx, st->pipe, texObj);
/* release the old tex (will likely be freed too) */
pipe_resource_reference(&oldTex, NULL);
st_texture_release_all_sampler_views(stObj);
}
else {
/* Make sure that the base texture image data is present in the
* texture buffer.
*/
st_finalize_texture(ctx, st->pipe, texObj);
}
pt = stObj->pt;
assert(pt->last_level >= lastLevel);
if (pt->target == PIPE_TEXTURE_CUBE) {
first_layer = last_layer = _mesa_tex_target_to_face(target);
}
else {
first_layer = 0;
last_layer = util_max_layer(pt, baseLevel);
}
/* Try to generate the mipmap by rendering/texturing. If that fails,
* use the software fallback.
*/
if (!util_gen_mipmap(st->pipe, pt, pt->format, baseLevel, lastLevel,
first_layer, last_layer, PIPE_TEX_FILTER_LINEAR)) {
_mesa_generate_mipmap(ctx, target, texObj);
}
/* Fill in the Mesa gl_texture_image fields */
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
const struct gl_texture_image *srcImage
= _mesa_get_tex_image(ctx, texObj, target, srcLevel);
struct gl_texture_image *dstImage;
struct st_texture_image *stImage;
uint border = srcImage->Border;
uint dstWidth, dstHeight, dstDepth;
dstWidth = u_minify(pt->width0, dstLevel);
if (texObj->Target == GL_TEXTURE_1D_ARRAY) {
dstHeight = pt->array_size;
}
else {
dstHeight = u_minify(pt->height0, dstLevel);
}
if (texObj->Target == GL_TEXTURE_2D_ARRAY ||
texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY) {
dstDepth = pt->array_size;
}
else {
dstDepth = u_minify(pt->depth0, dstLevel);
}
dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel);
if (!dstImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
return;
}
/* Free old image data */
ctx->Driver.FreeTextureImageBuffer(ctx, dstImage);
/* initialize new image */
_mesa_init_teximage_fields(ctx, dstImage, dstWidth, dstHeight,
dstDepth, border, srcImage->InternalFormat,
srcImage->TexFormat);
stImage = st_texture_image(dstImage);
pipe_resource_reference(&stImage->pt, pt);
}
}
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;
}
/**
* Called by ctx->Driver.RenderTexture
*/
static void
st_render_texture(struct gl_context *ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct st_renderbuffer *strb;
struct gl_renderbuffer *rb;
struct pipe_resource *pt;
struct st_texture_object *stObj;
const struct gl_texture_image *texImage;
struct pipe_surface surf_tmpl;
if (!st_finalize_texture(ctx, pipe, att->Texture))
return;
pt = st_get_texobj_resource(att->Texture);
assert(pt);
/* get pointer to texture image we're rendeing to */
texImage = _mesa_get_attachment_teximage(att);
/* create new renderbuffer which wraps the texture image.
* Use the texture's name as the renderbuffer's name so that we have
* something that's non-zero (to determine vertical orientation) and
* possibly helpful for debugging.
*/
rb = st_new_renderbuffer(ctx, att->Texture->Name);
if (!rb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()");
return;
}
_mesa_reference_renderbuffer(&att->Renderbuffer, rb);
assert(rb->RefCount == 1);
rb->AllocStorage = NULL; /* should not get called */
strb = st_renderbuffer(rb);
assert(strb->Base.RefCount > 0);
/* get the texture for the texture object */
stObj = st_texture_object(att->Texture);
/* point renderbuffer at texobject */
strb->rtt = stObj;
strb->rtt_level = att->TextureLevel;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
rb->Width = texImage->Width2;
rb->Height = texImage->Height2;
rb->_BaseFormat = texImage->_BaseFormat;
rb->InternalFormat = texImage->InternalFormat;
pipe_resource_reference( &strb->texture, pt );
pipe_surface_release(pipe, &strb->surface);
assert(strb->rtt_level <= strb->texture->last_level);
/* new surface for rendering into the texture */
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = ctx->Color.sRGBEnabled
? strb->texture->format : util_format_linear(strb->texture->format);
surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
surf_tmpl.u.tex.level = strb->rtt_level;
surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
strb->surface = pipe->create_surface(pipe,
strb->texture,
&surf_tmpl);
strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
/* Invalidate buffer state so that the pipe's framebuffer state
* gets updated.
* That's where the new renderbuffer (which we just created) gets
* passed to the pipe as a (color/depth) render target.
*/
st_invalidate_state(ctx, _NEW_BUFFERS);
/* Need to trigger a call to update_framebuffer() since we just
* attached a new renderbuffer.
*/
ctx->NewState |= _NEW_BUFFERS;
}
/**
* Called by ctx->Driver.RenderTexture
*/
static void
st_render_texture(struct gl_context *ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct gl_renderbuffer *rb = att->Renderbuffer;
struct st_renderbuffer *strb = st_renderbuffer(rb);
struct pipe_resource *pt;
struct st_texture_object *stObj;
const struct gl_texture_image *texImage;
struct pipe_surface surf_tmpl;
if (!st_finalize_texture(ctx, pipe, att->Texture))
return;
pt = st_get_texobj_resource(att->Texture);
assert(pt);
/* get pointer to texture image we're rendeing to */
texImage = _mesa_get_attachment_teximage(att);
/* get the texture for the texture object */
stObj = st_texture_object(att->Texture);
/* point renderbuffer at texobject */
strb->rtt = stObj;
strb->rtt_level = att->TextureLevel;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
pipe_resource_reference( &strb->texture, pt );
pipe_surface_release(pipe, &strb->surface);
assert(strb->rtt_level <= strb->texture->last_level);
/* new surface for rendering into the texture */
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = ctx->Color.sRGBEnabled
? strb->texture->format : util_format_linear(strb->texture->format);
surf_tmpl.u.tex.level = strb->rtt_level;
surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
strb->surface = pipe->create_surface(pipe,
strb->texture,
&surf_tmpl);
strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
/* Invalidate buffer state so that the pipe's framebuffer state
* gets updated.
* That's where the new renderbuffer (which we just created) gets
* passed to the pipe as a (color/depth) render target.
*/
st_invalidate_state(ctx, _NEW_BUFFERS);
/* Need to trigger a call to update_framebuffer() since we just
* attached a new renderbuffer.
*/
ctx->NewState |= _NEW_BUFFERS;
}
/**
* Called via ctx->Driver.GenerateMipmap().
*/
void
st_generate_mipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct st_context *st = st_context(ctx);
struct st_texture_object *stObj = st_texture_object(texObj);
struct pipe_resource *pt = st_get_texobj_resource(texObj);
const uint baseLevel = texObj->BaseLevel;
enum pipe_format format;
uint lastLevel, first_layer, last_layer;
if (!pt)
return;
/* not sure if this ultimately actually should work,
but we're not supporting multisampled textures yet. */
assert(pt->nr_samples < 2);
/* find expected last mipmap level to generate*/
lastLevel = compute_num_levels(ctx, texObj, target) - 1;
if (lastLevel == 0)
return;
st_flush_bitmap_cache(st);
st_invalidate_readpix_cache(st);
/* The texture isn't in a "complete" state yet so set the expected
* lastLevel here, since it won't get done in st_finalize_texture().
*/
stObj->lastLevel = lastLevel;
if (!texObj->Immutable) {
const GLboolean genSave = texObj->GenerateMipmap;
/* Temporarily set GenerateMipmap to true so that allocate_full_mipmap()
* makes the right decision about full mipmap allocation.
*/
texObj->GenerateMipmap = GL_TRUE;
_mesa_prepare_mipmap_levels(ctx, texObj, baseLevel, lastLevel);
texObj->GenerateMipmap = genSave;
/* At this point, memory for all the texture levels has been
* allocated. However, the base level image may be in one resource
* while the subsequent/smaller levels may be in another resource.
* Finalizing the texture will copy the base images from the former
* resource to the latter.
*
* After this, we'll have all mipmap levels in one resource.
*/
st_finalize_texture(ctx, st->pipe, texObj);
}
pt = stObj->pt;
if (!pt) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "mipmap generation");
return;
}
assert(pt->last_level >= lastLevel);
if (pt->target == PIPE_TEXTURE_CUBE) {
first_layer = last_layer = _mesa_tex_target_to_face(target);
}
else {
first_layer = 0;
last_layer = util_max_layer(pt, baseLevel);
}
if (stObj->surface_based)
format = stObj->surface_format;
else
format = pt->format;
/* First see if the driver supports hardware mipmap generation,
* if not then generate the mipmap by rendering/texturing.
* If that fails, use the software fallback.
*/
if (!st->pipe->screen->get_param(st->pipe->screen,
PIPE_CAP_GENERATE_MIPMAP) ||
!st->pipe->generate_mipmap(st->pipe, pt, format, baseLevel,
lastLevel, first_layer, last_layer)) {
if (!util_gen_mipmap(st->pipe, pt, format, baseLevel, lastLevel,
first_layer, last_layer, PIPE_TEX_FILTER_LINEAR)) {
_mesa_generate_mipmap(ctx, target, texObj);
}
}
}
/**
* Software fallback for generate mipmap levels.
*/
static void
fallback_generate_mipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct pipe_context *pipe = st_context(ctx)->pipe;
struct pipe_resource *pt = st_get_texobj_resource(texObj);
const uint baseLevel = texObj->BaseLevel;
const uint lastLevel = pt->last_level;
const uint face = _mesa_tex_target_to_face(target);
uint dstLevel;
GLenum datatype;
GLuint comps;
GLboolean compressed;
if (ST_DEBUG & DEBUG_FALLBACK)
debug_printf("%s: fallback processing\n", __FUNCTION__);
assert(target != GL_TEXTURE_3D); /* not done yet */
compressed =
_mesa_is_format_compressed(texObj->Image[face][baseLevel]->TexFormat);
if (compressed) {
GLenum type =
_mesa_get_format_datatype(texObj->Image[face][baseLevel]->TexFormat);
datatype = type == GL_UNSIGNED_NORMALIZED ? GL_UNSIGNED_BYTE : GL_FLOAT;
comps = 4;
}
else {
_mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat,
&datatype, &comps);
assert(comps > 0 && "bad texture format in fallback_generate_mipmap()");
}
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
const uint srcWidth = u_minify(pt->width0, srcLevel);
const uint srcHeight = u_minify(pt->height0, srcLevel);
const uint srcDepth = u_minify(pt->depth0, srcLevel);
const uint dstWidth = u_minify(pt->width0, dstLevel);
const uint dstHeight = u_minify(pt->height0, dstLevel);
const uint dstDepth = u_minify(pt->depth0, dstLevel);
struct pipe_transfer *srcTrans, *dstTrans;
const ubyte *srcData;
ubyte *dstData;
int srcStride, dstStride;
srcTrans = pipe_get_transfer(pipe, pt, srcLevel,
face,
PIPE_TRANSFER_READ, 0, 0,
srcWidth, srcHeight);
dstTrans = pipe_get_transfer(pipe, pt, dstLevel,
face,
PIPE_TRANSFER_WRITE, 0, 0,
dstWidth, dstHeight);
srcData = (ubyte *) pipe_transfer_map(pipe, srcTrans);
dstData = (ubyte *) pipe_transfer_map(pipe, dstTrans);
srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->resource->format);
dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->resource->format);
/* this cannot work correctly for 3d since it does
not respect layerStride. */
if (compressed) {
const enum pipe_format format = pt->format;
const uint bw = util_format_get_blockwidth(format);
const uint bh = util_format_get_blockheight(format);
const uint srcWidth2 = align(srcWidth, bw);
const uint srcHeight2 = align(srcHeight, bh);
const uint dstWidth2 = align(dstWidth, bw);
const uint dstHeight2 = align(dstHeight, bh);
uint8_t *srcTemp, *dstTemp;
assert(comps == 4);
srcTemp = malloc(srcWidth2 * srcHeight2 * comps * (datatype == GL_FLOAT ? 4 : 1));
dstTemp = malloc(dstWidth2 * dstHeight2 * comps * (datatype == GL_FLOAT ? 4 : 1));
/* decompress the src image: srcData -> srcTemp */
decompress_image(format, datatype, srcData, srcTemp, srcWidth2, srcHeight2, srcTrans->stride);
_mesa_generate_mipmap_level(target, datatype, comps,
0 /*border*/,
srcWidth2, srcHeight2, srcDepth,
srcTemp,
srcWidth2, /* stride in texels */
dstWidth2, dstHeight2, dstDepth,
dstTemp,
dstWidth2); /* stride in texels */
/* compress the new image: dstTemp -> dstData */
compress_image(format, datatype, dstTemp, dstData, dstWidth2, dstHeight2, dstTrans->stride);
free(srcTemp);
free(dstTemp);
}
else {
_mesa_generate_mipmap_level(target, datatype, comps,
0 /*border*/,
srcWidth, srcHeight, srcDepth,
srcData,
srcStride, /* stride in texels */
dstWidth, dstHeight, dstDepth,
dstData,
dstStride); /* stride in texels */
}
pipe_transfer_unmap(pipe, srcTrans);
pipe_transfer_unmap(pipe, dstTrans);
pipe->transfer_destroy(pipe, srcTrans);
pipe->transfer_destroy(pipe, dstTrans);
}
}