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intel: Use Mesa core's renderbuffer accessors for depth.

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Since we're using GTT mappings now (no manual detiling), there's
really nothing special to accessing these buffers, other than needing
the new RowStride field of gl_renderbuffer to accomodate padding.

Reduces the driver size by 2.7kb, and improves glean depthStencil
performance 3-10x (!)

Reviewed-by: Brian Paul <brianp@vmware.com>
(cherry picked from commit 0778fdb002)
This commit is contained in:
Eric Anholt 2011-04-15 11:58:58 -07:00 • committed by Ian Romanick
parent 77be3db45c
commit 3436f5d82f
2 changed files with 17 additions and 33 deletions
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48
src/mesa/drivers/dri/intel/intel_span.c
View file

@ -30,6 +30,7 @@
#include "main/macros.h"
#include "main/mtypes.h"
#include "main/colormac.h"
#include "main/renderbuffer.h"
#include "intel_buffers.h"
#include "intel_fbo.h"
@ -134,36 +135,6 @@ intel_set_span_functions(struct intel_context *intel,
#define TAG2(x,y) intel_##x##y##_RG1616
#include "spantmp2.h"
#define LOCAL_DEPTH_VARS \
struct intel_renderbuffer *irb = intel_renderbuffer(rb); \
const GLint yScale = rb->Name ? 1 : -1; \
const GLint yBias = rb->Name ? 0 : rb->Height - 1; \
int minx = 0, miny = 0; \
int maxx = rb->Width; \
int maxy = rb->Height; \
int pitch = irb->region->pitch * irb->region->cpp; \
void *buf = irb->region->buffer->virtual; \
(void)buf; (void)pitch; /* unused for non-gttmap. */ \
#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
/* z16 depthbuffer functions. */
#define VALUE_TYPE GLushort
#define WRITE_DEPTH(_x, _y, d) \
(*(uint16_t *)(irb->region->buffer->virtual + NO_TILE(_x, _y)) = d)
#define READ_DEPTH(d, _x, _y) \
d = *(uint16_t *)(irb->region->buffer->virtual + NO_TILE(_x, _y))
#define TAG(x) intel_##x##_z16
#include "depthtmp.h"
/* z24_s8 and z24_x8 depthbuffer functions. */
#define VALUE_TYPE GLuint
#define WRITE_DEPTH(_x, _y, d) \
(*(uint32_t *)(irb->region->buffer->virtual + NO_TILE(_x, _y)) = d)
#define READ_DEPTH(d, _x, _y) \
d = *(uint32_t *)(irb->region->buffer->virtual + NO_TILE(_x, _y))
#define TAG(x) intel_##x##_z24_s8
#include "depthtmp.h"
void
intel_renderbuffer_map(struct intel_context *intel, struct gl_renderbuffer *rb)
@ -175,6 +146,15 @@ intel_renderbuffer_map(struct intel_context *intel, struct gl_renderbuffer *rb)
drm_intel_gem_bo_map_gtt(irb->region->buffer);
rb->Data = irb->region->buffer->virtual;
rb->RowStride = irb->region->pitch;
/* Flip orientation if it's the window system buffer */
if (!rb->Name) {
rb->Data += rb->RowStride * (irb->region->height - 1) * irb->region->cpp;
rb->RowStride = -rb->RowStride;
}
intel_set_span_functions(intel, rb);
}
@ -191,6 +171,8 @@ intel_renderbuffer_unmap(struct intel_context *intel,
rb->GetRow = NULL;
rb->PutRow = NULL;
rb->Data = NULL;
rb->RowStride = 0;
}
/**
@ -371,9 +353,9 @@ static span_init_func intel_span_init_funcs[MESA_FORMAT_COUNT] =
[MESA_FORMAT_XRGB8888] = intel_InitPointers_xRGB8888,
[MESA_FORMAT_ARGB8888] = intel_InitPointers_ARGB8888,
[MESA_FORMAT_SARGB8] = intel_InitPointers_ARGB8888,
[MESA_FORMAT_Z16] = intel_InitDepthPointers_z16,
[MESA_FORMAT_X8_Z24] = intel_InitDepthPointers_z24_s8,
[MESA_FORMAT_S8_Z24] = intel_InitDepthPointers_z24_s8,
[MESA_FORMAT_Z16] = _mesa_set_renderbuffer_accessors,
[MESA_FORMAT_X8_Z24] = _mesa_set_renderbuffer_accessors,
[MESA_FORMAT_S8_Z24] = _mesa_set_renderbuffer_accessors,
[MESA_FORMAT_R8] = intel_InitPointers_R8,
[MESA_FORMAT_RG88] = intel_InitPointers_RG88,
[MESA_FORMAT_R16] = intel_InitPointers_R16,

2
src/mesa/main/renderbuffer.c
View file

@ -1011,6 +1011,7 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_Z32:
case MESA_FORMAT_X8_Z24:
case MESA_FORMAT_Z24_X8:
rb->DataType = GL_UNSIGNED_INT;
rb->GetPointer = get_pointer_uint;
rb->GetRow = get_row_uint;
@ -1023,6 +1024,7 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
break;
case MESA_FORMAT_Z24_S8:
case MESA_FORMAT_S8_Z24:
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->GetPointer = get_pointer_uint;
rb->GetRow = get_row_uint;