-/* $Id: osmesa.c,v 1.72 2001/12/17 04:56:29 brianp Exp $ */
+/* $Id: osmesa.c,v 1.93 2002/10/24 23:57:23 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 4.1
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include "glheader.h"
#include "GL/osmesa.h"
+#include "buffers.h"
#include "context.h"
#include "colormac.h"
#include "depth.h"
#include "extensions.h"
+#include "imports.h"
#include "macros.h"
#include "matrix.h"
-#include "mem.h"
#include "mmath.h"
#include "mtypes.h"
#include "texformat.h"
osmesa->gl_visual,
sharelist ? &sharelist->gl_ctx
: (GLcontext *) NULL,
- (void *) osmesa, GL_TRUE )) {
+ (void *) osmesa,
+ GL_FALSE)) {
_mesa_destroy_visual( osmesa->gl_visual );
FREE(osmesa);
return NULL;
_mesa_enable_sw_extensions(&(osmesa->gl_ctx));
_mesa_enable_1_3_extensions(&(osmesa->gl_ctx));
+ /*_mesa_enable_1_4_extensions(&(osmesa->gl_ctx));*/
osmesa->gl_buffer = _mesa_create_framebuffer( osmesa->gl_visual,
(GLboolean) ( osmesa->gl_visual->depthBits > 0 ),
* with the lower-left image pixel stored in the first array position
* (ie. bottom-to-top).
*
- * Since the only type initially supported is GL_UNSIGNED_BYTE, if the
- * context is in RGBA mode, each pixel will be stored as a 4-byte RGBA
- * value. If the context is in color indexed mode, each pixel will be
- * stored as a 1-byte value.
- *
* If the context's viewport hasn't been initialized yet, it will now be
* initialized to (0,0,width,height).
*
* Input: ctx - the rendering context
* buffer - the image buffer memory
- * type - data type for pixel components, only GL_UNSIGNED_BYTE
- * and GL_UNSIGNED_SHORT_5_6_5 supported now.
+ * type - data type for pixel components
+ * Normally, only GL_UNSIGNED_BYTE and GL_UNSIGNED_SHORT_5_6_5
+ * are supported. But if Mesa's been compiled with CHAN_BITS==16
+ * then type must be GL_UNSIGNED_SHORT. And if Mesa's been build
+ * with CHAN_BITS==32 then type must be GL_FLOAT.
* width, height - size of image buffer in pixels, at least 1
* Return: GL_TRUE if success, GL_FALSE if error because of invalid ctx,
- * invalid buffer address, type!=GL_UNSIGNED_BYTE, width<1, height<1,
+ * invalid buffer address, invalid type, width<1, height<1,
* width>internal limit or height>internal limit.
*/
GLAPI GLboolean GLAPIENTRY
compute_row_addresses( ctx );
/* init viewport */
- if (ctx->gl_ctx.Viewport.Width==0) {
+ if (ctx->gl_ctx.Viewport.Width == 0) {
/* initialize viewport and scissor box to buffer size */
_mesa_Viewport( 0, 0, width, height );
ctx->gl_ctx.Scissor.Width = width;
ctx->gl_ctx.Scissor.Height = height;
}
+ else {
+ /* this will make ensure we recognize the new buffer size */
+ _mesa_ResizeBuffersMESA();
+ }
+
+ /* Added by Gerk Huisma: */
+ _tnl_MakeCurrent( &ctx->gl_ctx, ctx->gl_ctx.DrawBuffer,
+ ctx->gl_ctx.ReadBuffer );
return GL_TRUE;
}
}
}
+
+
+struct name_address {
+ const char *Name;
+ GLvoid *Address;
+};
+
+static struct name_address functions[] = {
+ { "OSMesaCreateContext", (void *) OSMesaCreateContext },
+ { "OSMesaCreateContextExt", (void *) OSMesaCreateContextExt },
+ { "OSMesaDestroyContext", (void *) OSMesaDestroyContext },
+ { "OSMesaMakeCurrent", (void *) OSMesaMakeCurrent },
+ { "OSMesaGetCurrentContext", (void *) OSMesaGetCurrentContext },
+ { "OSMesaPixelsStore", (void *) OSMesaPixelStore },
+ { "OSMesaGetIntegerv", (void *) OSMesaGetIntegerv },
+ { "OSMesaGetDepthBuffer", (void *) OSMesaGetDepthBuffer },
+ { "OSMesaGetColorBuffer", (void *) OSMesaGetColorBuffer },
+ { "OSMesaGetProcAddress", (void *) OSMesaGetProcAddress },
+ { NULL, NULL }
+};
+
+GLAPI void * GLAPIENTRY
+OSMesaGetProcAddress( const char *funcName )
+{
+ int i;
+ for (i = 0; functions[i].Name; i++) {
+ if (strcmp(functions[i].Name, funcName) == 0)
+ return (void *) functions[i].Address;
+ }
+ return (void *) _glapi_get_proc_address(funcName);
+}
+
+
/**********************************************************************/
/*** Device Driver Functions ***/
/**********************************************************************/
* Useful macros:
*/
+#if CHAN_TYPE == GL_FLOAT
+#define PACK_RGBA(DST, R, G, B, A) \
+do { \
+ (DST)[0] = MAX2( R, 0.0F ); \
+ (DST)[1] = MAX2( G, 0.0F ); \
+ (DST)[2] = MAX2( B, 0.0F ); \
+ (DST)[3] = CLAMP(A, 0.0F, CHAN_MAXF);\
+} while (0)
+#else
#define PACK_RGBA(DST, R, G, B, A) \
do { \
(DST)[osmesa->rInd] = R; \
(DST)[osmesa->bInd] = B; \
(DST)[osmesa->aInd] = A; \
} while (0)
+#endif
#define PACK_RGB(DST, R, G, B) \
do { \
-static GLboolean set_draw_buffer( GLcontext *ctx, GLenum mode )
-{
- (void) ctx;
- if (mode==GL_FRONT_LEFT) {
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
- }
-}
-
-
-static void set_read_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
+static void set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
{
/* separate read buffer not supported */
ASSERT(buffer == ctx->DrawBuffer);
- ASSERT(mode == GL_FRONT_LEFT);
+ ASSERT(bufferBit == FRONT_LEFT_BIT);
}
}
}
else if (osmesa->format == OSMESA_RGB) {
- const GLchan r = ctx->Color.ClearColor[0];
- const GLchan g = ctx->Color.ClearColor[1];
- const GLchan b = ctx->Color.ClearColor[2];
+ GLchan r, g, b;
+ CLAMPED_FLOAT_TO_CHAN(r, ctx->Color.ClearColor[0]);
+ CLAMPED_FLOAT_TO_CHAN(g, ctx->Color.ClearColor[1]);
+ CLAMPED_FLOAT_TO_CHAN(b, ctx->Color.ClearColor[2]);
if (all) {
/* Clear whole RGB buffer */
GLuint n = osmesa->rowlength * osmesa->height;
}
}
else if (osmesa->format == OSMESA_BGR) {
- const GLchan r = ctx->Color.ClearColor[0];
- const GLchan g = ctx->Color.ClearColor[1];
- const GLchan b = ctx->Color.ClearColor[2];
+ GLchan r, g, b;
+ CLAMPED_FLOAT_TO_CHAN(r, ctx->Color.ClearColor[0]);
+ CLAMPED_FLOAT_TO_CHAN(g, ctx->Color.ClearColor[1]);
+ CLAMPED_FLOAT_TO_CHAN(b, ctx->Color.ClearColor[2]);
if (all) {
/* Clear whole RGB buffer */
const GLint n = osmesa->rowlength * osmesa->height;
}
}
else if (osmesa->format == OSMESA_RGB_565) {
- const GLchan r = ctx->Color.ClearColor[0];
- const GLchan g = ctx->Color.ClearColor[1];
- const GLchan b = ctx->Color.ClearColor[2];
GLushort clearPixel;
+ GLchan r, g, b;
+ CLAMPED_FLOAT_TO_CHAN(r, ctx->Color.ClearColor[0]);
+ CLAMPED_FLOAT_TO_CHAN(g, ctx->Color.ClearColor[1]);
+ CLAMPED_FLOAT_TO_CHAN(b, ctx->Color.ClearColor[2]);
PACK_RGB_565(clearPixel, r, g, b);
if (all) {
/* Clear whole RGB buffer */
/* 4-byte pixel value */
GLuint clearPixel;
GLchan *clr = (GLchan *) &clearPixel;
- clr[osmesa->rInd] = ctx->Color.ClearColor[0];
- clr[osmesa->gInd] = ctx->Color.ClearColor[1];
- clr[osmesa->bInd] = ctx->Color.ClearColor[2];
- clr[osmesa->aInd] = ctx->Color.ClearColor[3];
+ CLAMPED_FLOAT_TO_CHAN(clr[osmesa->rInd], ctx->Color.ClearColor[0]);
+ CLAMPED_FLOAT_TO_CHAN(clr[osmesa->gInd], ctx->Color.ClearColor[1]);
+ CLAMPED_FLOAT_TO_CHAN(clr[osmesa->bInd], ctx->Color.ClearColor[2]);
+ CLAMPED_FLOAT_TO_CHAN(clr[osmesa->aInd], ctx->Color.ClearColor[3]);
if (all) {
/* Clear whole RGBA buffer */
const GLuint n = osmesa->rowlength * osmesa->height;
}
}
#else
- const GLchan r = ctx->Color.ClearColor[0];
- const GLchan g = ctx->Color.ClearColor[1];
- const GLchan b = ctx->Color.ClearColor[2];
- const GLchan a = ctx->Color.ClearColor[3];
+ GLchan r, g, b, a;
+ CLAMPED_FLOAT_TO_CHAN(r, ctx->Color.ClearColor[0]);
+ CLAMPED_FLOAT_TO_CHAN(g, ctx->Color.ClearColor[1]);
+ CLAMPED_FLOAT_TO_CHAN(b, ctx->Color.ClearColor[2]);
+ CLAMPED_FLOAT_TO_CHAN(a, ctx->Color.ClearColor[3]);
if (all) {
/* Clear whole RGBA buffer */
const GLuint n = osmesa->rowlength * osmesa->height;
-static void buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
+static void buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
{
- OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
- *width = osmesa->width;
- *height = osmesa->height;
+ /* don't use GET_CURRENT_CONTEXT(ctx) here - it's a problem on Windows */
+ GLcontext *ctx = (GLcontext *) _glapi_get_context();
+ (void) buffer;
+ if (ctx) {
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ *width = osmesa->width;
+ *height = osmesa->height;
+ }
}
if (CHAN_BITS != 8) return NULL;
if (ctx->RenderMode != GL_RENDER) return NULL;
if (ctx->Line.SmoothFlag) return NULL;
- if (ctx->Texture._ReallyEnabled) return NULL;
+ if (ctx->Texture._EnabledUnits) return NULL;
if (ctx->Light.ShadeModel != GL_FLAT) return NULL;
if (ctx->Line.Width != 1.0F) return NULL;
if (ctx->Line.StippleFlag) return NULL;
const SWvertex *v2 )
{
const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
-
#define INTERP_Z 1
#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define INTERP_RGB 1
if (ctx->RenderMode != GL_RENDER) return (swrast_tri_func) NULL;
if (ctx->Polygon.SmoothFlag) return (swrast_tri_func) NULL;
if (ctx->Polygon.StippleFlag) return (swrast_tri_func) NULL;
- if (ctx->Texture._ReallyEnabled) return (swrast_tri_func) NULL;
+ if (ctx->Texture._EnabledUnits) return (swrast_tri_func) NULL;
if (osmesa->format != OSMESA_RGBA &&
osmesa->format != OSMESA_BGRA &&
osmesa->format != OSMESA_ARGB) return (swrast_tri_func) NULL;
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
+ return (swrast_tri_func) NULL;
if (swrast->_RasterMask == DEPTH_BIT &&
ctx->Depth.Func == GL_LESS &&
(void) ctx;
switch (name) {
case GL_RENDERER:
+#if CHAN_BITS == 32
+ return (const GLubyte *) "Mesa OffScreen32";
+#elif CHAN_BITS == 16
+ return (const GLubyte *) "Mesa OffScreen16";
+#else
return (const GLubyte *) "Mesa OffScreen";
+#endif
default:
return NULL;
}
ctx->Driver.GetString = get_string;
ctx->Driver.UpdateState = osmesa_update_state;
- ctx->Driver.SetDrawBuffer = set_draw_buffer;
- ctx->Driver.ResizeBuffersMESA = _swrast_alloc_buffers;
+ ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
ctx->Driver.GetBufferSize = buffer_size;
ctx->Driver.Accum = _swrast_Accum;
ctx->Driver.CopyPixels = _swrast_CopyPixels;
ctx->Driver.DrawPixels = _swrast_DrawPixels;
ctx->Driver.ReadPixels = _swrast_ReadPixels;
+ ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
ctx->Driver.TexImage1D = _mesa_store_teximage1d;
ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
+ ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
+ ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
+ ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
+ ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
+ ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
+ ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
+
ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
- ctx->Driver.BaseCompressedTexFormat = _mesa_base_compressed_texformat;
- ctx->Driver.CompressedTextureSize = _mesa_compressed_texture_size;
- ctx->Driver.GetCompressedTexImage = _mesa_get_compressed_teximage;
+ swdd->SetBuffer = set_buffer;
/* RGB(A) span/pixel functions */
if (osmesa->format == OSMESA_RGB) {
swdd->ReadCI32Span = read_index_span;
swdd->ReadCI32Pixels = read_index_pixels;
- swdd->SetReadBuffer = set_read_buffer;
-
tnl->Driver.RunPipeline = _tnl_run_pipeline;
_swrast_InvalidateState( ctx, new_state );
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