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Diffstat (limited to 'src/mesa/drivers/osmesa/osmesa.c')
-rw-r--r--src/mesa/drivers/osmesa/osmesa.c167
1 files changed, 105 insertions, 62 deletions
diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index a5a71bfc2d..ea015236f0 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -1,4 +1,4 @@
-/* $Id: osmesa.c,v 1.9 2000/01/15 06:13:26 rjfrank Exp $ */
+/* $Id: osmesa.c,v 1.10 2000/03/03 17:50:09 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -206,7 +206,7 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
swalpha, /* software alpha */
GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
- DEPTH_BITS,
+ DEFAULT_SOFTWARE_DEPTH_BITS,
STENCIL_BITS,
rgbmode ? ACCUM_BITS : 0,
indexBits,
@@ -400,7 +400,6 @@ OSMesaMakeCurrent( OSMesaContext ctx, void *buffer, GLenum type,
-
OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void )
{
GLcontext *ctx = gl_get_current_context();
@@ -1220,6 +1219,7 @@ static void flat_rgba_z_line( GLcontext *ctx,
#define INTERP_XY 1
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define CLIP_HACK 1
#define PLOT(X,Y) \
if (Z < *zPtr) { \
@@ -1272,6 +1272,7 @@ static void flat_blend_rgba_line( GLcontext *ctx,
#endif
}
+
/*
* Draw a flat-shaded, Z-less, alpha-blended, RGB line into an osmesa buffer.
*/
@@ -1292,16 +1293,16 @@ static void flat_blend_rgba_z_line( GLcontext *ctx,
#define INTERP_XY 1
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define CLIP_HACK 1
-#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- { GLuint *ptr4 = PIXELADDR4(X,Y); \
- GLuint pixel = 0; \
- pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift);\
- pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift);\
- pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift);\
- *ptr4 = pixel; \
- } \
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint pixel = 0; \
+ pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift); \
+ pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift); \
+ pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift); \
+ *ptr4 = pixel; \
}
#ifdef WIN32
@@ -1311,6 +1312,7 @@ static void flat_blend_rgba_z_line( GLcontext *ctx,
#endif
}
+
/*
* Draw a flat-shaded, Z-less, alpha-blended, RGB line into an osmesa buffer.
*/
@@ -1331,17 +1333,17 @@ static void flat_blend_rgba_z_line_write( GLcontext *ctx,
#define INTERP_XY 1
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define CLIP_HACK 1
-#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- { GLuint *ptr4 = PIXELADDR4(X,Y); \
- GLuint pixel = 0; \
- pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift);\
- pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift);\
- pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift);\
- *ptr4 = pixel; \
- } \
- *zPtr = Z; \
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint pixel = 0; \
+ pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift); \
+ pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift); \
+ pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift); \
+ *ptr4 = pixel; \
+ *zPtr = Z; \
}
#ifdef WIN32
@@ -1369,7 +1371,8 @@ static line_func choose_line_function( GLcontext *ctx )
if (ctx->RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
- && ctx->Depth.Mask==GL_TRUE) {
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
switch(osmesa->format) {
case OSMESA_RGBA:
case OSMESA_BGRA:
@@ -1394,6 +1397,7 @@ static line_func choose_line_function( GLcontext *ctx )
if (ctx->RasterMask==(DEPTH_BIT|BLEND_BIT)
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Color.BlendSrcRGB==GL_SRC_ALPHA
&& ctx->Color.BlendDstRGB==GL_ONE_MINUS_SRC_ALPHA
&& ctx->Color.BlendSrcA==GL_SRC_ALPHA
@@ -1412,6 +1416,7 @@ static line_func choose_line_function( GLcontext *ctx )
if (ctx->RasterMask==(DEPTH_BIT|BLEND_BIT)
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_FALSE
+ && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Color.BlendSrcRGB==GL_SRC_ALPHA
&& ctx->Color.BlendDstRGB==GL_ONE_MINUS_SRC_ALPHA
&& ctx->Color.BlendSrcA==GL_SRC_ALPHA
@@ -1467,6 +1472,7 @@ static void smooth_rgba_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
(void) pv;
osmesa->bVisible = GL_TRUE; /* if here, the occlusion test is misused */
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define INTERP_RGB 1
#define INTERP_ALPHA 1
#define INNER_LOOP( LEFT, RIGHT, Y ) \
@@ -1502,6 +1508,7 @@ static void flat_rgba_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
{
OSMesaContext osmesa = (OSMesaContext) ctx;
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define SETUP_CODE \
GLubyte r = VB->ColorPtr->data[pv][0]; \
GLubyte g = VB->ColorPtr->data[pv][1]; \
@@ -1547,6 +1554,7 @@ static triangle_func choose_triangle_function( GLcontext *ctx )
if (ctx->RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& osmesa->format!=OSMESA_COLOR_INDEX) {
if (ctx->Light.ShadeModel==GL_SMOOTH) {
return smooth_rgba_z_triangle;
@@ -1558,6 +1566,8 @@ static triangle_func choose_triangle_function( GLcontext *ctx )
return NULL;
}
+
+
/**********************************************************************/
/***** Occlusion rendering routines *****/
/**********************************************************************/
@@ -1576,87 +1586,113 @@ static triangle_func choose_triangle_function( GLcontext *ctx )
} \
return;
-/***** Color Index *****/
+/**
+*** Color Index
+**/
+
static void write_index32_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLuint index[], const GLubyte mask[] )
+ GLuint n, GLint x, GLint y,
+ const GLuint index[], const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_index8_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte index[], const GLubyte mask[] )
+ GLuint n, GLint x, GLint y,
+ const GLubyte index[], const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_monoindex_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
+ GLuint n, GLint x, GLint y,
+ const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_index_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLuint index[], const GLubyte mask[] )
+ GLuint n, const GLint x[], const GLint y[],
+ const GLuint index[], const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_monoindex_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
-/***** RGB/RGBA *****/
+/**
+*** RGB/RGBA
+**/
static void write_rgba_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLubyte rgba[][4], const GLubyte mask[] )
+ GLuint n, GLint x, GLint y,
+ CONST GLubyte rgba[][4], const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_rgb_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLubyte rgb[][3],
- const GLubyte mask[] )
+ GLuint n, GLint x, GLint y,
+ CONST GLubyte rgb[][3],
+ const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_rgba_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- CONST GLubyte rgba[][4], const GLubyte mask[] )
+ GLuint n, const GLint x[], const GLint y[],
+ CONST GLubyte rgba[][4], const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_monocolor_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
+ GLuint n, GLint x, GLint y,
+ const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
+
+
static void write_monocolor_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte mask[] )
{
- OCC_STD_MASK_TEST
+ OCC_STD_MASK_TEST
}
-/***** Line Drawing *****/
+
+/**
+*** Line Drawing
+**/
static void line_occ( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+ GLuint vert0, GLuint vert1, GLuint pvert )
{
OSMesaContext osmesa = (OSMesaContext) ctx->DriverCtx;
osmesa->bVisible = GL_TRUE;
}
+
static void line_z_occ( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+ GLuint vert0, GLuint vert1, GLuint pvert )
{
OSMesaContext osmesa = (OSMesaContext) ctx->DriverCtx;
if (osmesa->bVisible) return;
#define INTERP_XY 1
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define CLIP_HACK 1
#define PLOT(X,Y) \
if (Z < *zPtr) { \
@@ -1671,19 +1707,25 @@ static void line_z_occ( GLcontext *ctx,
#endif
}
-/***** Triangle Drawing *****/
+
+/**
+*** Triangle Drawing
+**/
static void triangle_occ( GLcontext *ctx, GLuint v0, GLuint v1,
- GLuint v2, GLuint pv )
+ GLuint v2, GLuint pv )
{
OSMesaContext osmesa = (OSMesaContext) ctx->DriverCtx;
osmesa->bVisible = GL_TRUE;
}
+
+
static void triangle_z_occ( GLcontext *ctx, GLuint v0, GLuint v1,
- GLuint v2, GLuint pv )
+ GLuint v2, GLuint pv )
{
OSMesaContext osmesa = (OSMesaContext) ctx->DriverCtx;
if (osmesa->bVisible) return;
#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define INNER_LOOP( LEFT, RIGHT, Y ) \
{ \
GLint i, len = RIGHT-LEFT; \
@@ -1703,6 +1745,7 @@ static void triangle_z_occ( GLcontext *ctx, GLuint v0, GLuint v1,
#endif
}
+
static const GLubyte *get_string( GLcontext *ctx, GLenum name )
{
(void) ctx;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 14:14:51 +0000