static __DRIbuffer *
intelAllocateBuffer(__DRIscreen *screen,
unsigned attachment, unsigned format,
int width, int height)
{
struct intel_buffer *intelBuffer;
struct intel_screen *intelScreen = screen->driverPrivate;
assert(attachment == __DRI_BUFFER_FRONT_LEFT ||
attachment == __DRI_BUFFER_BACK_LEFT);
intelBuffer = calloc(1, sizeof *intelBuffer);
if (intelBuffer == NULL)
return NULL;
/* The front and back buffers are color buffers, which are X tiled. */
intelBuffer->region = intel_region_alloc(intelScreen,
I915_TILING_X,
format / 8,
width,
height,
true);
if (intelBuffer->region == NULL) {
free(intelBuffer);
return NULL;
}
intel_region_flink(intelBuffer->region, &intelBuffer->base.name);
intelBuffer->base.attachment = attachment;
intelBuffer->base.cpp = intelBuffer->region->cpp;
intelBuffer->base.pitch = intelBuffer->region->pitch;
return &intelBuffer->base;
}
struct intel_mipmap_tree *
intel_miptree_create(struct intel_context *intel,
GLenum target,
GLenum internal_format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0, GLuint cpp, GLuint compress_byte,
GLboolean expect_accelerated_upload)
{
struct intel_mipmap_tree *mt;
mt = intel_miptree_create_internal(intel, target, internal_format,
first_level, last_level, width0,
height0, depth0, cpp, compress_byte);
/*
* pitch == 0 || height == 0 indicates the null texture
*/
if (!mt || !mt->pitch || !mt->total_height)
return NULL;
mt->region = intel_region_alloc(intel,
mt->cpp,
mt->pitch,
mt->total_height,
mt->pitch,
expect_accelerated_upload);
if (!mt->region) {
free(mt);
return NULL;
}
return mt;
}
struct intel_mipmap_tree *
intel_miptree_create(struct intel_context *intel,
GLenum target,
mesa_format format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0,
bool expect_accelerated_upload,
enum intel_miptree_tiling_mode requested_tiling)
{
struct intel_mipmap_tree *mt;
GLuint total_width, total_height;
mt = intel_miptree_create_layout(intel, target, format,
first_level, last_level, width0,
height0, depth0,
false);
/*
* pitch == 0 || height == 0 indicates the null texture
*/
if (!mt || !mt->total_width || !mt->total_height) {
intel_miptree_release(&mt);
return NULL;
}
total_width = mt->total_width;
total_height = mt->total_height;
uint32_t tiling = intel_miptree_choose_tiling(intel, format, width0,
requested_tiling,
mt);
bool y_or_x = tiling == (I915_TILING_Y | I915_TILING_X);
mt->region = intel_region_alloc(intel->intelScreen,
y_or_x ? I915_TILING_Y : tiling,
mt->cpp,
total_width,
total_height,
expect_accelerated_upload);
/* If the region is too large to fit in the aperture, we need to use the
* BLT engine to support it. The BLT paths can't currently handle Y-tiling,
* so we need to fall back to X.
*/
if (y_or_x && mt->region->bo->size >= intel->max_gtt_map_object_size) {
perf_debug("%dx%d miptree larger than aperture; falling back to X-tiled\n",
mt->total_width, mt->total_height);
intel_region_release(&mt->region);
mt->region = intel_region_alloc(intel->intelScreen,
I915_TILING_X,
mt->cpp,
total_width,
total_height,
expect_accelerated_upload);
}
mt->offset = 0;
if (!mt->region) {
intel_miptree_release(&mt);
return NULL;
}
return mt;
}
/**
* Called via glRenderbufferStorageEXT() to set the format and allocate
* storage for a user-created renderbuffer.
*/
static GLboolean
intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
GLenum internalFormat,
GLuint width, GLuint height)
{
struct intel_context *intel = intel_context(ctx);
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
int cpp;
GLuint pitch;
ASSERT(rb->Name != 0);
switch (internalFormat) {
case GL_R3_G3_B2:
case GL_RGB4:
case GL_RGB5:
rb->Format = MESA_FORMAT_RGB565;
rb->DataType = GL_UNSIGNED_BYTE;
break;
case GL_RGB:
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
rb->Format = MESA_FORMAT_XRGB8888;
rb->DataType = GL_UNSIGNED_BYTE;
break;
case GL_RGBA:
case GL_RGBA2:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
rb->Format = MESA_FORMAT_ARGB8888;
rb->DataType = GL_UNSIGNED_BYTE;
break;
case GL_STENCIL_INDEX:
case GL_STENCIL_INDEX1_EXT:
case GL_STENCIL_INDEX4_EXT:
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
/* alloc a depth+stencil buffer */
rb->Format = MESA_FORMAT_S8_Z24;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
break;
case GL_DEPTH_COMPONENT16:
rb->Format = MESA_FORMAT_Z16;
rb->DataType = GL_UNSIGNED_SHORT;
break;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
rb->Format = MESA_FORMAT_S8_Z24;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
break;
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
rb->Format = MESA_FORMAT_S8_Z24;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
break;
default:
_mesa_problem(ctx,
"Unexpected format in intel_alloc_renderbuffer_storage");
return GL_FALSE;
}
rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
cpp = _mesa_get_format_bytes(rb->Format);
intelFlush(ctx);
/* free old region */
if (irb->region) {
intel_region_release(&irb->region);
}
/* allocate new memory region/renderbuffer */
/* Choose a pitch to match hardware requirements:
*/
pitch = ((cpp * width + 63) & ~63) / cpp;
/* alloc hardware renderbuffer */
DBG("Allocating %d x %d Intel RBO (pitch %d)\n", width, height, pitch);
irb->region = intel_region_alloc(intel, I915_TILING_NONE, cpp,
width, height, pitch, GL_TRUE);
if (!irb->region)
return GL_FALSE; /* out of memory? */
ASSERT(irb->region->buffer);
rb->Width = width;
rb->Height = height;
return GL_TRUE;
}
struct intel_mipmap_tree *
intel_miptree_create(struct intel_context *intel,
GLenum target,
GLenum internal_format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0, GLuint cpp, GLuint compress_byte)
{
GLboolean ok;
struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
DBG("%s target %s format %s level %d..%d\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(target),
_mesa_lookup_enum_by_nr(internal_format), first_level, last_level);
mt->target = target_to_target(target);
mt->internal_format = internal_format;
mt->first_level = first_level;
mt->last_level = last_level;
mt->width0 = width0;
mt->height0 = height0;
mt->depth0 = depth0;
mt->cpp = compress_byte ? compress_byte : cpp;
mt->compressed = compress_byte ? 1 : 0;
mt->refcount = 1;
mt->pitch = 0;
switch (intel->intelScreen->deviceID) {
case PCI_CHIP_I945_G:
case PCI_CHIP_I945_GM:
case PCI_CHIP_I945_GME:
case PCI_CHIP_G33_G:
case PCI_CHIP_Q33_G:
case PCI_CHIP_Q35_G:
ok = i945_miptree_layout(intel, mt);
break;
case PCI_CHIP_I915_G:
case PCI_CHIP_I915_GM:
case PCI_CHIP_I830_M:
case PCI_CHIP_I855_GM:
case PCI_CHIP_I865_G:
default:
/* All the i830 chips and the i915 use this layout:
*/
ok = i915_miptree_layout(intel, mt);
break;
}
if (ok) {
assert (mt->pitch);
mt->region = intel_region_alloc(intel->intelScreen,
mt->cpp, mt->pitch, mt->total_height);
}
if (!mt->region) {
free(mt);
return NULL;
}
return mt;
}
/**
* Called via glRenderbufferStorageEXT() to set the format and allocate
* storage for a user-created renderbuffer.
*/
static GLboolean
intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
GLenum internalFormat,
GLuint width, GLuint height)
{
struct intel_context *intel = intel_context(ctx);
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
GLboolean softwareBuffer = GL_FALSE;
int cpp;
ASSERT(rb->Name != 0);
switch (internalFormat) {
case GL_R3_G3_B2:
case GL_RGB4:
case GL_RGB5:
rb->_ActualFormat = GL_RGB5;
rb->DataType = GL_UNSIGNED_BYTE;
rb->RedBits = 5;
rb->GreenBits = 6;
rb->BlueBits = 5;
cpp = 2;
break;
case GL_RGB:
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
case GL_RGBA:
case GL_RGBA2:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
rb->_ActualFormat = GL_RGBA8;
rb->DataType = GL_UNSIGNED_BYTE;
rb->RedBits = 8;
rb->GreenBits = 8;
rb->BlueBits = 8;
rb->AlphaBits = 8;
cpp = 4;
break;
case GL_STENCIL_INDEX:
case GL_STENCIL_INDEX1_EXT:
case GL_STENCIL_INDEX4_EXT:
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
/* alloc a depth+stencil buffer */
rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->StencilBits = 8;
cpp = 4;
break;
case GL_DEPTH_COMPONENT16:
rb->_ActualFormat = GL_DEPTH_COMPONENT16;
rb->DataType = GL_UNSIGNED_SHORT;
rb->DepthBits = 16;
cpp = 2;
break;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->DepthBits = 24;
cpp = 4;
break;
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->DepthBits = 24;
rb->StencilBits = 8;
cpp = 4;
break;
default:
_mesa_problem(ctx,
"Unexpected format in intel_alloc_renderbuffer_storage");
return GL_FALSE;
}
intelFlush(ctx);
/* free old region */
if (irb->region) {
intel_region_release(&irb->region);
}
/* allocate new memory region/renderbuffer */
if (softwareBuffer) {
return _mesa_soft_renderbuffer_storage(ctx, rb, internalFormat,
width, height);
}
else {
/* Choose a pitch to match hardware requirements:
*/
GLuint pitch = ((cpp * width + 63) & ~63) / cpp;
/* alloc hardware renderbuffer */
DBG("Allocating %d x %d Intel RBO (pitch %d)\n", width,
height, pitch);
irb->region = intel_region_alloc(intel, cpp, pitch, height);
if (!irb->region)
return GL_FALSE; /* out of memory? */
ASSERT(irb->region->buffer);
rb->Width = width;
rb->Height = height;
/* This sets the Get/PutRow/Value functions */
intel_set_span_functions(&irb->Base);
return GL_TRUE;
}
}
