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path: root/src/mesa/pipe/softpipe/sp_surface.c
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Diffstat (limited to 'src/mesa/pipe/softpipe/sp_surface.c')
-rw-r--r--src/mesa/pipe/softpipe/sp_surface.c236
1 files changed, 222 insertions, 14 deletions
diff --git a/src/mesa/pipe/softpipe/sp_surface.c b/src/mesa/pipe/softpipe/sp_surface.c
index 16bbacb12b..cf89d28941 100644
--- a/src/mesa/pipe/softpipe/sp_surface.c
+++ b/src/mesa/pipe/softpipe/sp_surface.c
@@ -28,8 +28,22 @@
#include "sp_context.h"
#include "sp_state.h"
#include "sp_surface.h"
-#include "sp_headers.h"
+#include "pipe/p_defines.h"
+#include "main/imports.h"
+
+/**
+ * Softpipe surface functions.
+ * Basically, create surface of a particular type, then plug in default
+ * read/write_quad functions.
+ * Note that these quad funcs assume the buffer/region is in a linear
+ * layout with Y=0=bottom.
+ * If we had swizzled/AOS buffers the read/write functions could be
+ * simplified a lot....
+ */
+
+
+#if 000 /* OLD... should be recycled... */
static void rgba8_read_quad_f( struct softpipe_surface *gs,
GLint x, GLint y,
GLfloat (*rgba)[NUM_CHANNELS] )
@@ -98,9 +112,6 @@ static void rgba8_write_quad_f_swz( struct softpipe_surface *gs,
}
}
-
-
-
static void rgba8_read_quad_ub( struct softpipe_surface *gs,
GLint x, GLint y,
GLubyte (*rgba)[NUM_CHANNELS] )
@@ -118,7 +129,6 @@ static void rgba8_read_quad_ub( struct softpipe_surface *gs,
}
}
-
static void rgba8_write_quad_ub( struct softpipe_surface *gs,
GLint x, GLint y,
GLubyte (*rgba)[NUM_CHANNELS] )
@@ -136,18 +146,216 @@ static void rgba8_write_quad_ub( struct softpipe_surface *gs,
}
}
+#endif
+
+
+
+static void
+z16_read_quad_z(struct softpipe_surface *sps,
+ GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
+{
+ const GLushort *src
+ = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_U_Z16);
+
+ /* converting GLushort to GLuint: */
+ zzzz[0] = src[0];
+ zzzz[1] = src[1];
+ src += sps->surface.region->pitch;
+ zzzz[2] = src[0];
+ zzzz[3] = src[1];
+}
+
+static void
+z16_write_quad_z(struct softpipe_surface *sps,
+ GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
+{
+ GLushort *dst = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_U_Z16);
+
+ /* converting GLuint to GLushort: */
+ dst[0] = zzzz[0];
+ dst[1] = zzzz[1];
+ dst += sps->surface.region->pitch;
+ dst[0] = zzzz[2];
+ dst[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.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_U_Z32);
+
+ zzzz[0] = src[0];
+ zzzz[1] = src[1];
+ src += sps->surface.region->pitch;
+ zzzz[2] = src[0];
+ zzzz[3] = src[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.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_U_Z32);
+
+ dst[0] = zzzz[0];
+ dst[1] = zzzz[1];
+ dst += sps->surface.region->pitch;
+ dst[0] = zzzz[2];
+ dst[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.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
+
+ zzzz[0] = src[0] >> 8;
+ zzzz[1] = src[1] >> 8;
+ src += sps->surface.region->pitch;
+ zzzz[2] = src[0] >> 8;
+ zzzz[3] = src[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.region->map + y * sps->surface.region->pitch + 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.region->pitch;
+ 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.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
+
+ ssss[0] = src[0] & 0xff;
+ ssss[1] = src[1] & 0xff;
+ src += sps->surface.region->pitch;
+ ssss[2] = src[0] & 0xff;
+ ssss[3] = src[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.region->map + y * sps->surface.region->pitch + 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.region->pitch;
+ dst[0] = (dst[0] & 0xffffff00) | ssss[2];
+ dst[1] = (dst[1] & 0xffffff00) | ssss[3];
+}
-struct softpipe_surface_type gs_rgba8 = {
- G_SURFACE_RGBA_8888,
- rgba8_read_quad_f,
- rgba8_read_quad_f_swz,
- rgba8_read_quad_ub,
- rgba8_write_quad_f,
- rgba8_write_quad_f_swz,
- rgba8_write_quad_ub,
-};
+static void
+s8_read_quad_stencil(struct softpipe_surface *sps,
+ GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
+{
+ const GLubyte *src
+ = sps->surface.region->map + y * sps->surface.region->pitch + x;
+
+ assert(sps->surface.format == PIPE_FORMAT_U_S8);
+
+ ssss[0] = src[0];
+ ssss[1] = src[1];
+ src += sps->surface.region->pitch;
+ ssss[2] = src[0];
+ ssss[3] = src[1];
+}
+
+static void
+s8_write_quad_stencil(struct softpipe_surface *sps,
+ GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
+{
+ GLubyte *dst
+ = sps->surface.region->map + y * sps->surface.region->pitch + x;
+ assert(sps->surface.format == PIPE_FORMAT_U_S8);
+ dst[0] = ssss[0];
+ dst[1] = ssss[1];
+ dst += sps->surface.region->pitch;
+ dst[0] = ssss[2];
+ dst[1] = ssss[3];
+}
+
+
+
+static void
+init_quad_funcs(struct softpipe_surface *sps)
+{
+ switch (sps->surface.format) {
+ case PIPE_FORMAT_U_Z16:
+ sps->read_quad_z = z16_read_quad_z;
+ sps->write_quad_z = z16_write_quad_z;
+ break;
+ case PIPE_FORMAT_U_Z32:
+ sps->read_quad_z = z32_read_quad_z;
+ sps->write_quad_z = z32_write_quad_z;
+ break;
+ case 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;
+ break;
+ case PIPE_FORMAT_U_S8:
+ sps->read_quad_stencil = s8_read_quad_stencil;
+ sps->write_quad_stencil = s8_write_quad_stencil;
+ break;
+ default:
+ assert(0);
+ }
+}
+
+
+static struct pipe_surface *
+sp_surface_alloc(struct pipe_context *pipe, GLenum format)
+{
+ struct softpipe_surface *sps = CALLOC_STRUCT(softpipe_surface);
+ if (!sps)
+ return NULL;
+
+ sps->surface.format = format;
+ init_quad_funcs(sps);
+
+ return &sps->surface;
+}
+
+
+void
+sp_init_surface_functions(struct softpipe_context *sp)
+{
+ sp->pipe.surface_alloc = sp_surface_alloc;
+}
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