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-rw-r--r--src/mesa/pipe/softpipe/sp_z_surface.c159
-rw-r--r--src/mesa/pipe/softpipe/sp_z_surface.h2
2 files changed, 142 insertions, 19 deletions
diff --git a/src/mesa/pipe/softpipe/sp_z_surface.c b/src/mesa/pipe/softpipe/sp_z_surface.c
index 662a4a15ee2..744737cb6c1 100644
--- a/src/mesa/pipe/softpipe/sp_z_surface.c
+++ b/src/mesa/pipe/softpipe/sp_z_surface.c
@@ -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 = PIPE_FORMAT_U_Z16;
-
- sps->surface.resize = z16_resize;
- sps->surface.buffer.map = z16_map;
- sps->surface.buffer.unmap = z16_unmap;
- sps->read_quad_z = z16_read_quad_z;
- sps->write_quad_z = z16_write_quad_z;
+ sps->surface.format = format;
+ sps->surface.resize = z_resize;
+ sps->surface.buffer.map = z_map;
+ sps->surface.buffer.unmap = z_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;
}
diff --git a/src/mesa/pipe/softpipe/sp_z_surface.h b/src/mesa/pipe/softpipe/sp_z_surface.h
index 9c3c43ca57b..6a8d89a7c14 100644
--- a/src/mesa/pipe/softpipe/sp_z_surface.h
+++ b/src/mesa/pipe/softpipe/sp_z_surface.h
@@ -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 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 15:34:52 +0000