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32 and z24s8 softpipe buffers

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This commit is contained in:
Brian
2007-07-30 21:39:57 -06:00
parent 42c817269a
commit 9bc1c92a0b
4 changed files with 163 additions and 32 deletions
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8
src/mesa/main/renderbuffer.c
View File

@@ -51,6 +51,7 @@
#include "pipe/softpipe/sp_z_surface.h"
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
/* 32-bit color index format. Not a public format. */
@@ -1094,7 +1095,8 @@ _mesa_soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
rb->PutValues = put_values_ushort;
rb->PutMonoValues = put_mono_values_ushort;
rb->DepthBits = 8 * sizeof(GLushort);
rb->surface = (struct pipe_surface *) softpipe_new_z_surface(16);
rb->surface
= (struct pipe_surface *) softpipe_new_z_surface(PIPE_FORMAT_U_Z16);
pixelSize = sizeof(GLushort);
break;
case GL_DEPTH_COMPONENT24:
@@ -1117,6 +1119,8 @@ _mesa_soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
rb->_ActualFormat = GL_DEPTH_COMPONENT32;
rb->DepthBits = 32;
}
rb->surface
= (struct pipe_surface *) softpipe_new_z_surface(PIPE_FORMAT_U_Z32);
pixelSize = sizeof(GLuint);
break;
case GL_DEPTH_STENCIL_EXT:
@@ -1134,6 +1138,8 @@ _mesa_soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
rb->PutMonoValues = put_mono_values_uint;
rb->DepthBits = 24;
rb->StencilBits = 8;
rb->surface
= (struct pipe_surface *) softpipe_new_z_surface(PIPE_FORMAT_Z24_S8);
pixelSize = sizeof(GLuint);
break;
case GL_COLOR_INDEX8_EXT:

28
src/mesa/pipe/p_defines.h
View File

@@ -132,19 +132,21 @@
/**
* Texture/surface image formats (preliminary)
*/
#define PIPE_FORMAT_U_R8_G8_B8_A8 0 /**< ubyte[4] RGBA */
#define PIPE_FORMAT_U_A8_R8_G8_B8 1 /**< ubyte[4] ARGB */
#define PIPE_FORMAT_U_R5_G6_B5 2 /**< 5/6/5 RGB */
#define PIPE_FORMAT_U_L8 3 /**< ubyte luminance */
#define PIPE_FORMAT_U_A8 4 /**< ubyte alpha */
#define PIPE_FORMAT_U_I8 5 /**< ubyte intensity */
#define PIPE_FORMAT_U_L8_A8 6 /**< ubyte luminance, alpha */
#define PIPE_FORMAT_U_Z16 7 /**< ushort Z/depth */
#define PIPE_FORMAT_F_Z32 8 /**< float Z/depth */
#define PIPE_FORMAT_YCBCR 9
#define PIPE_FORMAT_YCBCR_REV 10
#define PIPE_FORMAT_U_S8 11 /**< 8-bit stencil */
#define PIPE_FORMAT_Z24_S8 12 /**< 24-bit Z + 8-bit stencil */
#define PIPE_FORMAT_NONE 0 /**< unstructured */
#define PIPE_FORMAT_U_R8_G8_B8_A8 1 /**< ubyte[4] RGBA */
#define PIPE_FORMAT_U_A8_R8_G8_B8 2 /**< ubyte[4] ARGB */
#define PIPE_FORMAT_U_R5_G6_B5 3 /**< 5/6/5 RGB */
#define PIPE_FORMAT_U_L8 4 /**< ubyte luminance */
#define PIPE_FORMAT_U_A8 5 /**< ubyte alpha */
#define PIPE_FORMAT_U_I8 6 /**< ubyte intensity */
#define PIPE_FORMAT_U_L8_A8 7 /**< ubyte luminance, alpha */
#define PIPE_FORMAT_YCBCR 8
#define PIPE_FORMAT_YCBCR_REV 9
#define PIPE_FORMAT_U_Z16 10 /**< ushort Z/depth */
#define PIPE_FORMAT_U_Z32 11 /**< uint Z/depth */
#define PIPE_FORMAT_F_Z32 12 /**< float Z/depth */
#define PIPE_FORMAT_Z24_S8 13 /**< 24-bit Z + 8-bit stencil */
#define PIPE_FORMAT_U_S8 14 /**< 8-bit stencil */
/**

153
src/mesa/pipe/softpipe/sp_z_surface.c
View File

@@ -36,38 +36,48 @@
#include "main/imports.h"
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "sp_context.h"
#include "sp_surface.h"
#include "sp_z_surface.h"
static void*
z16_map(struct pipe_buffer *pb, GLuint access_mode)
z_map(struct pipe_buffer *pb, GLuint access_mode)
{
struct softpipe_surface *sps = (struct softpipe_surface *) pb;
sps->surface.ptr = pb->ptr;
sps->surface.stride = sps->surface.width;
return pb->ptr;
}
static void
z16_unmap(struct pipe_buffer *pb)
z_unmap(struct pipe_buffer *pb)
{
struct softpipe_surface *sps = (struct softpipe_surface *) pb;
sps->surface.ptr = NULL;
sps->surface.stride = 0;
}
static void
z16_resize(struct pipe_surface *ps, GLuint width, GLuint height)
z_resize(struct pipe_surface *ps, GLuint width, GLuint height)
{
struct softpipe_surface *sps = (struct softpipe_surface *) ps;
if (sps->surface.buffer.ptr)
free(sps->surface.buffer.ptr);
ps->buffer.ptr = (GLubyte *) malloc(width * height * sizeof(GLushort));
sps->surface.stride = sps->surface.width;
if (sps->surface.format == PIPE_FORMAT_U_Z16)
sps->surface.cpp = 2;
else if (sps->surface.format == PIPE_FORMAT_U_Z32 ||
sps->surface.format == PIPE_FORMAT_Z24_S8)
sps->surface.cpp = 4;
else
assert(0);
ps->buffer.ptr = (GLubyte *) malloc(width * height * sps->surface.cpp);
ps->width = width;
ps->height = height;
sps->surface.stride = sps->surface.width;
sps->surface.cpp = 2;
}
static void
@@ -77,10 +87,12 @@ z16_read_quad_z(struct softpipe_surface *sps,
const GLushort *src
= (GLushort *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_U_Z16);
/* converting GLushort to GLuint: */
zzzz[0] = src[0];
zzzz[1] = src[1];
zzzz[2] = src[sps->surface.width];
zzzz[2] = src[sps->surface.width + 0];
zzzz[3] = src[sps->surface.width + 1];
}
@@ -90,29 +102,140 @@ z16_write_quad_z(struct softpipe_surface *sps,
{
GLushort *dst = (GLushort *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_U_Z16);
/* converting GLuint to GLushort: */
dst[0] = zzzz[0];
dst[1] = zzzz[1];
dst[sps->surface.width] = zzzz[2];
dst[sps->surface.width + 0] = zzzz[2];
dst[sps->surface.width + 1] = zzzz[3];
}
static void
z32_read_quad_z(struct softpipe_surface *sps,
GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
{
const GLuint *src
= (GLuint *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_U_Z32);
zzzz[0] = src[0];
zzzz[1] = src[1];
zzzz[2] = src[sps->surface.width + 0];
zzzz[3] = src[sps->surface.width + 1];
}
static void
z32_write_quad_z(struct softpipe_surface *sps,
GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
{
GLuint *dst = (GLuint *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_U_Z32);
dst[0] = zzzz[0];
dst[1] = zzzz[1];
dst[sps->surface.width + 0] = zzzz[2];
dst[sps->surface.width + 1] = zzzz[3];
}
static void
z24s8_read_quad_z(struct softpipe_surface *sps,
GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
{
const GLuint *src
= (GLuint *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
zzzz[0] = src[0] >> 8;
zzzz[1] = src[1] >> 8;
zzzz[2] = src[sps->surface.width + 0] >> 8;
zzzz[3] = src[sps->surface.width + 1] >> 8;
}
static void
z24s8_write_quad_z(struct softpipe_surface *sps,
GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
{
GLuint *dst = (GLuint *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
assert(zzzz[0] <= 0xffffff);
dst[0] = (dst[0] & 0xff) | (zzzz[0] << 8);
dst[1] = (dst[1] & 0xff) | (zzzz[1] << 8);
dst += sps->surface.width;
dst[0] = (dst[0] & 0xff) | (zzzz[2] << 8);
dst[1] = (dst[1] & 0xff) | (zzzz[3] << 8);
}
static void
z24s8_read_quad_stencil(struct softpipe_surface *sps,
GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
{
const GLuint *src
= (GLuint *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
ssss[0] = src[0] & 0xff;
ssss[1] = src[1] & 0xff;
ssss[2] = src[sps->surface.width + 0] & 0xff;
ssss[3] = src[sps->surface.width + 1] & 0xff;
}
static void
z24s8_write_quad_stencil(struct softpipe_surface *sps,
GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
{
GLuint *dst = (GLuint *) sps->surface.ptr + y * sps->surface.stride + x;
assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
dst[0] = (dst[0] & 0xffffff00) | ssss[0];
dst[1] = (dst[1] & 0xffffff00) | ssss[1];
dst += sps->surface.width;
dst[0] = (dst[0] & 0xffffff00) | ssss[2];
dst[1] = (dst[1] & 0xffffff00) | ssss[3];
}
/**
* Create a new software-based Z buffer.
* \param format one of the PIPE_FORMAT_z* formats
*/
struct softpipe_surface *
softpipe_new_z_surface(GLuint depth)
softpipe_new_z_surface(GLuint format)
{
struct softpipe_surface *sps = CALLOC_STRUCT(softpipe_surface);
if (!sps)
return NULL;
/* XXX ignoring depth param for now */
sps->surface.format = format;
sps->surface.resize = z_resize;
sps->surface.buffer.map = z_map;
sps->surface.buffer.unmap = z_unmap;
sps->surface.format = PIPE_FORMAT_U_Z16;
sps->surface.resize = z16_resize;
sps->surface.buffer.map = z16_map;
sps->surface.buffer.unmap = z16_unmap;
if (format == PIPE_FORMAT_U_Z16) {
sps->read_quad_z = z16_read_quad_z;
sps->write_quad_z = z16_write_quad_z;
}
else if (format == PIPE_FORMAT_U_Z32) {
sps->read_quad_z = z32_read_quad_z;
sps->write_quad_z = z32_write_quad_z;
}
else if (format == PIPE_FORMAT_Z24_S8) {
sps->read_quad_z = z24s8_read_quad_z;
sps->write_quad_z = z24s8_write_quad_z;
sps->read_quad_stencil = z24s8_read_quad_stencil;
sps->write_quad_stencil = z24s8_write_quad_stencil;
}
else {
assert(0);
}
return sps;
}

2
src/mesa/pipe/softpipe/sp_z_surface.h
View File

@@ -31,7 +31,7 @@
extern struct softpipe_surface *
softpipe_new_z_surface(GLuint depth);
softpipe_new_z_surface(GLuint format);
#endif /* SP_Z_SURFACE_H */