/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ *
+ * Copyright 2007 VMware, Inc.
* 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"), to deal in the Software without restriction, including
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
- *
+ *
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
+ *
**************************************************************************/
#include "main/glformats.h"
#include "main/macros.h"
#include "main/renderbuffer.h"
+#include "main/state.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
+#include "st_atom.h"
#include "st_context.h"
#include "st_cb_fbo.h"
#include "st_cb_flush.h"
GLuint width, GLuint height)
{
struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
struct pipe_screen *screen = st->pipe->screen;
struct st_renderbuffer *strb = st_renderbuffer(rb);
enum pipe_format format = PIPE_FORMAT_NONE;
- struct pipe_surface surf_tmpl;
struct pipe_resource templ;
/* init renderbuffer fields */
/* Free the old surface and texture
*/
- pipe_surface_reference( &strb->surface, NULL );
- pipe_resource_reference( &strb->texture, NULL );
+ pipe_surface_reference(&strb->surface_srgb, NULL);
+ pipe_surface_reference(&strb->surface_linear, NULL);
+ strb->surface = NULL;
+ pipe_resource_reference(&strb->texture, NULL);
/* If an sRGB framebuffer is unsupported, sRGB formats behave like linear
* formats.
* to <samples> and no more than the next larger sample count supported
* by the implementation.
*
- * So let's find the supported number of samples closest to NumSamples.
- * (NumSamples == 1) is treated the same as (NumSamples == 0).
+ * Find the supported number of samples >= rb->NumSamples
*/
- if (rb->NumSamples > 1) {
- unsigned i;
+ if (rb->NumSamples > 0) {
+ unsigned start, i;
+
+ if (ctx->Const.MaxSamples > 1 && rb->NumSamples == 1) {
+ /* don't try num_samples = 1 with drivers that support real msaa */
+ start = 2;
+ } else {
+ start = rb->NumSamples;
+ }
- for (i = rb->NumSamples; i <= ctx->Const.MaxSamples; i++) {
+ for (i = start; i <= ctx->Const.MaxSamples; i++) {
format = st_choose_renderbuffer_format(st, internalFormat, i);
if (format != PIPE_FORMAT_NONE) {
if (!strb->texture)
return FALSE;
- u_surface_default_template(&surf_tmpl, strb->texture);
- strb->surface = pipe->create_surface(pipe,
- strb->texture,
- &surf_tmpl);
- if (strb->surface) {
- assert(strb->surface->texture);
- assert(strb->surface->format);
- assert(strb->surface->width == width);
- assert(strb->surface->height == height);
- }
-
+ st_update_renderbuffer_surface(st, strb);
return strb->surface != NULL;
}
struct st_renderbuffer *strb = st_renderbuffer(rb);
if (ctx) {
struct st_context *st = st_context(ctx);
- pipe_surface_release(st->pipe, &strb->surface);
+ pipe_surface_release(st->pipe, &strb->surface_srgb);
+ pipe_surface_release(st->pipe, &strb->surface_linear);
+ strb->surface = NULL;
}
pipe_resource_reference(&strb->texture, NULL);
free(strb->data);
}
-/**
- * Called via ctx->Driver.NewFramebuffer()
- */
-static struct gl_framebuffer *
-st_new_framebuffer(struct gl_context *ctx, GLuint name)
-{
- /* XXX not sure we need to subclass gl_framebuffer for pipe */
- return _mesa_new_framebuffer(ctx, name);
-}
-
-
/**
* Called via ctx->Driver.NewRenderbuffer()
*/
/**
- * Allocate a renderbuffer for a an on-screen window (not a user-created
+ * Allocate a renderbuffer for an on-screen window (not a user-created
* renderbuffer). The window system code determines the format.
*/
struct gl_renderbuffer *
strb->Base.Format = st_pipe_format_to_mesa_format(format);
strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format);
strb->software = sw;
-
+
switch (format) {
+ case PIPE_FORMAT_B10G10R10A2_UNORM:
+ strb->Base.InternalFormat = GL_RGB10_A2;
+ break;
+ case PIPE_FORMAT_B10G10R10X2_UNORM:
+ strb->Base.InternalFormat = GL_RGB10;
+ break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
case PIPE_FORMAT_B8G8R8A8_UNORM:
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_X8R8G8B8_UNORM:
strb->Base.InternalFormat = GL_RGB8;
break;
+ case PIPE_FORMAT_R8G8B8A8_SRGB:
+ case PIPE_FORMAT_B8G8R8A8_SRGB:
+ case PIPE_FORMAT_A8R8G8B8_SRGB:
+ strb->Base.InternalFormat = GL_SRGB8_ALPHA8;
+ break;
+ case PIPE_FORMAT_R8G8B8X8_SRGB:
+ case PIPE_FORMAT_B8G8R8X8_SRGB:
+ case PIPE_FORMAT_X8R8G8B8_SRGB:
+ strb->Base.InternalFormat = GL_SRGB8;
+ break;
case PIPE_FORMAT_B5G5R5A1_UNORM:
strb->Base.InternalFormat = GL_RGB5_A1;
break;
break;
default:
_mesa_problem(NULL,
- "Unexpected format %s in st_new_renderbuffer_fb",
+ "Unexpected format %s in st_new_renderbuffer_fb",
util_format_name(format));
free(strb);
return NULL;
/**
- * Called via ctx->Driver.BindFramebufferEXT().
+ * Create or update the pipe_surface of a FBO renderbuffer.
+ * This is usually called after st_finalize_texture.
*/
-static void
-st_bind_framebuffer(struct gl_context *ctx, GLenum target,
- struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
+void
+st_update_renderbuffer_surface(struct st_context *st,
+ struct st_renderbuffer *strb)
+{
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_resource *resource = strb->texture;
+ const struct st_texture_object *stTexObj = NULL;
+ unsigned rtt_width = strb->Base.Width;
+ unsigned rtt_height = strb->Base.Height;
+ unsigned rtt_depth = strb->Base.Depth;
+
+ /*
+ * For winsys fbo, it is possible that the renderbuffer is sRGB-capable but
+ * the format of strb->texture is linear (because we have no control over
+ * the format). Check strb->Base.Format instead of strb->texture->format
+ * to determine if the rb is sRGB-capable.
+ */
+ boolean enable_srgb = st->ctx->Color.sRGBEnabled &&
+ _mesa_get_format_color_encoding(strb->Base.Format) == GL_SRGB;
+ enum pipe_format format = resource->format;
+
+ if (strb->is_rtt) {
+ stTexObj = st_texture_object(strb->Base.TexImage->TexObject);
+ if (stTexObj->surface_based)
+ format = stTexObj->surface_format;
+ }
+
+ format = enable_srgb ? util_format_srgb(format) : util_format_linear(format);
+
+ if (resource->target == PIPE_TEXTURE_1D_ARRAY) {
+ rtt_depth = rtt_height;
+ rtt_height = 1;
+ }
+
+ /* find matching mipmap level size */
+ unsigned level;
+ for (level = 0; level <= resource->last_level; level++) {
+ if (u_minify(resource->width0, level) == rtt_width &&
+ u_minify(resource->height0, level) == rtt_height &&
+ (resource->target != PIPE_TEXTURE_3D ||
+ u_minify(resource->depth0, level) == rtt_depth)) {
+ break;
+ }
+ }
+ assert(level <= resource->last_level);
+
+ /* determine the layer bounds */
+ unsigned first_layer, last_layer;
+ if (strb->rtt_layered) {
+ first_layer = 0;
+ last_layer = util_max_layer(strb->texture, level);
+ }
+ else {
+ first_layer =
+ last_layer = strb->rtt_face + strb->rtt_slice;
+ }
+
+ /* Adjust for texture views */
+ if (strb->is_rtt && resource->array_size > 1 &&
+ stTexObj->base.Immutable) {
+ const struct gl_texture_object *tex = &stTexObj->base;
+ first_layer += tex->MinLayer;
+ if (!strb->rtt_layered)
+ last_layer += tex->MinLayer;
+ else
+ last_layer = MIN2(first_layer + tex->NumLayers - 1, last_layer);
+ }
+
+ struct pipe_surface **psurf =
+ enable_srgb ? &strb->surface_srgb : &strb->surface_linear;
+ struct pipe_surface *surf = *psurf;
+
+ if (!surf ||
+ surf->texture->nr_samples != strb->Base.NumSamples ||
+ surf->format != format ||
+ surf->texture != resource ||
+ surf->width != rtt_width ||
+ surf->height != rtt_height ||
+ surf->u.tex.level != level ||
+ surf->u.tex.first_layer != first_layer ||
+ surf->u.tex.last_layer != last_layer) {
+ /* create a new pipe_surface */
+ struct pipe_surface surf_tmpl;
+ memset(&surf_tmpl, 0, sizeof(surf_tmpl));
+ surf_tmpl.format = format;
+ surf_tmpl.u.tex.level = level;
+ surf_tmpl.u.tex.first_layer = first_layer;
+ surf_tmpl.u.tex.last_layer = last_layer;
+
+ pipe_surface_release(pipe, psurf);
+
+ *psurf = pipe->create_surface(pipe, resource, &surf_tmpl);
+ }
+ strb->surface = *psurf;
+}
+
+
+/**
+ * Return the pipe_resource which stores a particular texture image.
+ */
+static struct pipe_resource *
+get_teximage_resource(struct gl_texture_object *texObj,
+ unsigned face, unsigned level)
{
- /* no-op */
+ struct st_texture_image *stImg =
+ st_texture_image(texObj->Image[face][level]);
+
+ return stImg->pt;
}
struct gl_renderbuffer *rb = att->Renderbuffer;
struct st_renderbuffer *strb = st_renderbuffer(rb);
struct pipe_resource *pt;
- struct st_texture_object *stObj;
- struct pipe_surface surf_tmpl;
- if (!st_finalize_texture(ctx, pipe, att->Texture))
+ if (!st_finalize_texture(ctx, pipe, att->Texture, att->CubeMapFace))
return;
- pt = st_get_texobj_resource(att->Texture);
+ pt = get_teximage_resource(att->Texture,
+ att->CubeMapFace,
+ att->TextureLevel);
assert(pt);
- /* 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->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_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);
+ st_update_renderbuffer_surface(st, strb);
/* 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);
+ st_invalidate_buffers(st);
/* Need to trigger a call to update_framebuffer() since we just
static void
st_finish_render_texture(struct gl_context *ctx, struct gl_renderbuffer *rb)
{
+ struct st_context *st = st_context(ctx);
struct st_renderbuffer *strb = st_renderbuffer(rb);
if (!strb)
return;
- strb->rtt = NULL;
+ strb->is_rtt = FALSE;
/* restore previous framebuffer state */
- st_invalidate_state(ctx, _NEW_BUFFERS);
+ st_invalidate_buffers(st);
}
*/
static GLboolean
st_validate_attachment(struct gl_context *ctx,
- struct pipe_screen *screen,
- const struct gl_renderbuffer_attachment *att,
- unsigned bindings)
+ struct pipe_screen *screen,
+ const struct gl_renderbuffer_attachment *att,
+ unsigned bindings)
{
const struct st_texture_object *stObj = st_texture_object(att->Texture);
enum pipe_format format;
- gl_format texFormat;
+ mesa_format texFormat;
GLboolean valid;
+ /* Sanity check: we must be binding the surface as a (color) render target
+ * or depth/stencil target.
+ */
+ assert(bindings == PIPE_BIND_RENDER_TARGET ||
+ bindings == PIPE_BIND_DEPTH_STENCIL);
+
/* Only validate texture attachments for now, since
* st_renderbuffer_alloc_storage makes sure that
* the format is supported.
* Later when we create a surface, we change the format to a linear one. */
if (!ctx->Extensions.EXT_framebuffer_sRGB &&
_mesa_get_format_color_encoding(texFormat) == GL_SRGB) {
- const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat);
- format = st_mesa_format_to_pipe_format(linearFormat);
+ const mesa_format linearFormat = _mesa_get_srgb_format_linear(texFormat);
+ format = st_mesa_format_to_pipe_format(st_context(ctx), linearFormat);
}
valid = screen->is_format_supported(screen, format,
return valid;
}
-
+
/**
* Check that the framebuffer configuration is valid in terms of what
return;
}
- if (!st_validate_attachment(ctx,
- screen,
- depth,
- PIPE_BIND_DEPTH_STENCIL)) {
+ if (!st_validate_attachment(ctx, screen, depth, PIPE_BIND_DEPTH_STENCIL)) {
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+ st_fbo_invalid("Invalid depth attachment");
return;
}
- if (!st_validate_attachment(ctx,
- screen,
- stencil,
- PIPE_BIND_DEPTH_STENCIL)) {
+ if (!st_validate_attachment(ctx, screen, stencil, PIPE_BIND_DEPTH_STENCIL)) {
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+ st_fbo_invalid("Invalid stencil attachment");
return;
}
for (i = 0; i < ctx->Const.MaxColorAttachments; i++) {
&fb->Attachment[BUFFER_COLOR0 + i];
enum pipe_format format;
- if (!st_validate_attachment(ctx,
- screen,
- att,
- PIPE_BIND_RENDER_TARGET)) {
- fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
- return;
+ if (!st_validate_attachment(ctx, screen, att, PIPE_BIND_RENDER_TARGET)) {
+ fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+ st_fbo_invalid("Invalid color attachment");
+ return;
}
if (!mixed_formats) {
/**
- * Called via glDrawBuffer.
+ * Called via glDrawBuffer. We only provide this driver function so that we
+ * can check if we need to allocate a new renderbuffer. Specifically, we
+ * don't usually allocate a front color buffer when using a double-buffered
+ * visual. But if the app calls glDrawBuffer(GL_FRONT) we need to allocate
+ * that buffer. Note, this is only for window system buffers, not user-
+ * created FBOs.
*/
static void
st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers)
{
struct st_context *st = st_context(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
- GLuint i;
(void) count;
(void) buffers;
- /* add the renderbuffers on demand */
- for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
- gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i];
- st_manager_add_color_renderbuffer(st, fb, idx);
+ if (_mesa_is_winsys_fbo(fb)) {
+ GLuint i;
+ /* add the renderbuffers on demand */
+ for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
+ gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i];
+
+ if (idx != BUFFER_NONE) {
+ st_manager_add_color_renderbuffer(st, fb, idx);
+ }
+ }
}
}
/**
- * Called via glReadBuffer.
+ * Called via glReadBuffer. As with st_DrawBuffers, we use this function
+ * to check if we need to allocate a renderbuffer on demand.
*/
static void
st_ReadBuffer(struct gl_context *ctx, GLenum buffer)
(void) buffer;
- /* add the renderbuffer on demand */
- st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);
+ /* Check if we need to allocate a front color buffer.
+ * Front buffers are often allocated on demand (other color buffers are
+ * always allocated in advance).
+ */
+ if ((fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT ||
+ fb->_ColorReadBufferIndex == BUFFER_FRONT_RIGHT) &&
+ fb->Attachment[fb->_ColorReadBufferIndex].Type == GL_NONE) {
+ assert(_mesa_is_winsys_fbo(fb));
+ /* add the buffer */
+ st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);
+ _mesa_update_state(ctx);
+ st_validate_state(st, ST_PIPELINE_UPDATE_FRAMEBUFFER);
+ }
}
map = pipe_transfer_map(pipe,
strb->texture,
- strb->rtt_level,
- strb->rtt_face + strb->rtt_slice,
+ strb->surface->u.tex.level,
+ strb->surface->u.tex.first_layer,
usage, x, y2, w, h, &strb->transfer);
if (map) {
if (invert) {
-void st_init_fbo_functions(struct dd_function_table *functions)
+void
+st_init_fbo_functions(struct dd_function_table *functions)
{
- functions->NewFramebuffer = st_new_framebuffer;
+ functions->NewFramebuffer = _mesa_new_framebuffer;
functions->NewRenderbuffer = st_new_renderbuffer;
- functions->BindFramebuffer = st_bind_framebuffer;
- functions->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
+ functions->FramebufferRenderbuffer = _mesa_FramebufferRenderbuffer_sw;
functions->RenderTexture = st_render_texture;
functions->FinishRenderTexture = st_finish_render_texture;
functions->ValidateFramebuffer = st_validate_framebuffer;
functions->MapRenderbuffer = st_MapRenderbuffer;
functions->UnmapRenderbuffer = st_UnmapRenderbuffer;
}
-
-
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