-/* $Id: osmesa.c,v 1.24 2000/10/30 16:32:43 brianp Exp $ */
+/* $Id: osmesa.c,v 1.93 2002/10/24 23:57:23 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.3
- *
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
- *
+ * Version: 4.1
+ *
+ * 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"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
- *
+ *
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
*/
-#ifdef PC_HEADER
-#include "all.h"
-#else
#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 "mem.h"
#include "matrix.h"
-#include "types.h"
-#include "vb.h"
-#include "extensions.h"
-#endif
+#include "mmath.h"
+#include "mtypes.h"
+#include "texformat.h"
+#include "texstore.h"
+#include "array_cache/acache.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "swrast/s_context.h"
+#include "swrast/s_depth.h"
+#include "swrast/s_lines.h"
+#include "swrast/s_triangle.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
/*
GLenum format; /* either GL_RGBA or GL_COLOR_INDEX */
void *buffer; /* the image buffer */
GLint width, height; /* size of image buffer */
- GLuint pixel; /* current color index or RGBA pixel value */
- GLuint clearpixel; /* pixel for clearing the color buffer */
GLint rowlength; /* number of pixels per row */
GLint userRowLength; /* user-specified number of pixels per row */
GLint rshift, gshift; /* bit shifts for RGBA formats */
GLint bshift, ashift;
- GLint rind, gind, bind; /* index offsets for RGBA formats */
- void *rowaddr[MAX_HEIGHT]; /* address of first pixel in each image row */
+ GLint rInd, gInd, bInd, aInd;/* index offsets for RGBA formats */
+ GLchan *rowaddr[MAX_HEIGHT]; /* address of first pixel in each image row */
GLboolean yup; /* TRUE -> Y increases upward */
/* FALSE -> Y increases downward */
};
/* A forward declaration: */
-static void osmesa_update_state( GLcontext *ctx );
+static void osmesa_update_state( GLcontext *ctx, GLuint newstate );
+static void osmesa_register_swrast_functions( GLcontext *ctx );
+
+
+
+#define OSMESA_CONTEXT(ctx) ((OSMesaContext) (ctx->DriverCtx))
* display lists. NULL indicates no sharing.
* Return: an OSMesaContext or 0 if error
*/
-OSMesaContext GLAPIENTRY
+GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
{
return OSMesaCreateContextExt(format, DEFAULT_SOFTWARE_DEPTH_BITS,
*
* Create context and specify size of ancillary buffers.
*/
-OSMesaContext GLAPIENTRY
+GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist )
{
OSMesaContext osmesa;
GLint rshift, gshift, bshift, ashift;
- GLint rind, gind, bind;
- GLint indexBits, redBits, greenBits, blueBits, alphaBits;
+ GLint rind, gind, bind, aind;
+ GLint indexBits = 0, redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
GLboolean rgbmode;
- GLboolean swalpha;
- GLuint i4 = 1;
- GLubyte *i1 = (GLubyte *) &i4;
- GLint little_endian = *i1;
+ const GLuint i4 = 1;
+ const GLubyte *i1 = (GLubyte *) &i4;
+ const GLint little_endian = *i1;
- swalpha = GL_FALSE;
- rind = gind = bind = 0;
+ rind = gind = bind = aind = 0;
if (format==OSMESA_COLOR_INDEX) {
indexBits = 8;
rshift = gshift = bshift = ashift = 0;
}
else if (format==OSMESA_RGBA) {
indexBits = 0;
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- alphaBits = 8;
+ redBits = CHAN_BITS;
+ greenBits = CHAN_BITS;
+ blueBits = CHAN_BITS;
+ alphaBits = CHAN_BITS;
+ rind = 0;
+ gind = 1;
+ bind = 2;
+ aind = 3;
if (little_endian) {
rshift = 0;
gshift = 8;
}
else if (format==OSMESA_BGRA) {
indexBits = 0;
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- alphaBits = 8;
+ redBits = CHAN_BITS;
+ greenBits = CHAN_BITS;
+ blueBits = CHAN_BITS;
+ alphaBits = CHAN_BITS;
+ bind = 0;
+ gind = 1;
+ rind = 2;
+ aind = 3;
if (little_endian) {
- ashift = 0;
- rshift = 8;
- gshift = 16;
- bshift = 24;
+ bshift = 0;
+ gshift = 8;
+ rshift = 16;
+ ashift = 24;
}
else {
bshift = 24;
}
else if (format==OSMESA_ARGB) {
indexBits = 0;
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- alphaBits = 8;
+ redBits = CHAN_BITS;
+ greenBits = CHAN_BITS;
+ blueBits = CHAN_BITS;
+ alphaBits = CHAN_BITS;
+ aind = 0;
+ rind = 1;
+ gind = 2;
+ bind = 3;
if (little_endian) {
- bshift = 0;
- gshift = 8;
- rshift = 16;
- ashift = 24;
+ ashift = 0;
+ rshift = 8;
+ gshift = 16;
+ bshift = 24;
}
else {
ashift = 24;
}
else if (format==OSMESA_RGB) {
indexBits = 0;
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
+ redBits = CHAN_BITS;
+ greenBits = CHAN_BITS;
+ blueBits = CHAN_BITS;
alphaBits = 0;
bshift = 0;
gshift = 8;
rshift = 16;
ashift = 24;
- bind = 2;
- gind = 1;
rind = 0;
+ gind = 1;
+ bind = 2;
rgbmode = GL_TRUE;
- swalpha = GL_TRUE;
}
else if (format==OSMESA_BGR) {
indexBits = 0;
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
+ redBits = CHAN_BITS;
+ greenBits = CHAN_BITS;
+ blueBits = CHAN_BITS;
alphaBits = 0;
bshift = 0;
gshift = 8;
rshift = 16;
ashift = 24;
- bind = 0;
- gind = 1;
rind = 2;
+ gind = 1;
+ bind = 0;
+ rgbmode = GL_TRUE;
+ }
+ else if (format==OSMESA_RGB_565) {
+ indexBits = 0;
+ redBits = 5;
+ greenBits = 6;
+ blueBits = 5;
+ alphaBits = 0;
+ rshift = 11;
+ gshift = 5;
+ bshift = 0;
+ ashift = 0;
+ rind = 0; /* not used */
+ gind = 0;
+ bind = 0;
rgbmode = GL_TRUE;
- swalpha = GL_TRUE;
}
else {
return NULL;
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;
}
- gl_extensions_enable(&(osmesa->gl_ctx),"GL_HP_occlusion_test");
- gl_extensions_enable(&(osmesa->gl_ctx), "GL_ARB_texture_cube_map");
- gl_extensions_enable(&(osmesa->gl_ctx), "GL_EXT_texture_env_combine");
+
+ _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,
- osmesa->gl_visual->DepthBits > 0,
- osmesa->gl_visual->StencilBits > 0,
- osmesa->gl_visual->AccumRedBits > 0,
- osmesa->gl_visual->AlphaBits > 0 );
+ (GLboolean) ( osmesa->gl_visual->depthBits > 0 ),
+ (GLboolean) ( osmesa->gl_visual->stencilBits > 0 ),
+ (GLboolean) ( osmesa->gl_visual->accumRedBits > 0 ),
+ GL_FALSE /* s/w alpha */ );
if (!osmesa->gl_buffer) {
_mesa_destroy_visual( osmesa->gl_visual );
osmesa->buffer = NULL;
osmesa->width = 0;
osmesa->height = 0;
- osmesa->pixel = 0;
- osmesa->clearpixel = 0;
osmesa->userRowLength = 0;
osmesa->rowlength = 0;
osmesa->yup = GL_TRUE;
osmesa->gshift = gshift;
osmesa->bshift = bshift;
osmesa->ashift = ashift;
- osmesa->rind = rind;
- osmesa->gind = gind;
- osmesa->bind = bind;
+ osmesa->rInd = rind;
+ osmesa->gInd = gind;
+ osmesa->bInd = bind;
+ osmesa->aInd = aind;
+
+
+ /* Initialize the software rasterizer and helper modules.
+ */
+ {
+ GLcontext *ctx = &osmesa->gl_ctx;
+
+ _swrast_CreateContext( ctx );
+ _ac_CreateContext( ctx );
+ _tnl_CreateContext( ctx );
+ _swsetup_CreateContext( ctx );
+
+ _swsetup_Wakeup( ctx );
+ osmesa_register_swrast_functions( ctx );
+ }
}
return osmesa;
}
*
* Input: ctx - the context to destroy
*/
-void GLAPIENTRY OSMesaDestroyContext( OSMesaContext ctx )
+GLAPI void GLAPIENTRY OSMesaDestroyContext( OSMesaContext ctx )
{
if (ctx) {
+ _swsetup_DestroyContext( &ctx->gl_ctx );
+ _tnl_DestroyContext( &ctx->gl_ctx );
+ _ac_DestroyContext( &ctx->gl_ctx );
+ _swrast_DestroyContext( &ctx->gl_ctx );
+
_mesa_destroy_visual( ctx->gl_visual );
_mesa_destroy_framebuffer( ctx->gl_buffer );
_mesa_free_context_data( &ctx->gl_ctx );
*/
static void compute_row_addresses( OSMesaContext ctx )
{
- GLint i;
+ GLint bytesPerPixel, bytesPerRow, i;
+ GLubyte *origin = (GLubyte *) ctx->buffer;
+
+ if (ctx->format == OSMESA_COLOR_INDEX) {
+ /* CI mode */
+ bytesPerPixel = 1 * sizeof(GLchan);
+ }
+ else if ((ctx->format == OSMESA_RGB) || (ctx->format == OSMESA_BGR)) {
+ /* RGB mode */
+ bytesPerPixel = 3 * sizeof(GLchan);
+ }
+ else if (ctx->format == OSMESA_RGB_565) {
+ /* 5/6/5 RGB pixel in 16 bits */
+ bytesPerPixel = 2;
+ }
+ else {
+ /* RGBA mode */
+ bytesPerPixel = 4 * sizeof(GLchan);
+ }
+
+ bytesPerRow = ctx->rowlength * bytesPerPixel;
if (ctx->yup) {
/* Y=0 is bottom line of window */
- if (ctx->format==OSMESA_COLOR_INDEX) {
- /* 1-byte CI mode */
- GLubyte *origin = (GLubyte *) ctx->buffer;
- for (i=0;i<MAX_HEIGHT;i++) {
- ctx->rowaddr[i] = origin + i * ctx->rowlength;
- }
- }
- else {
- if ((ctx->format==OSMESA_RGB) || (ctx->format==OSMESA_BGR)) {
- /* 3-byte RGB mode */
- GLubyte *origin = (GLubyte *) ctx->buffer;
- for (i=0;i<MAX_HEIGHT;i++) {
- ctx->rowaddr[i] = origin + (i * (ctx->rowlength*3));
- }
- } else {
- /* 4-byte RGBA mode */
- GLuint *origin = (GLuint *) ctx->buffer;
- for (i=0;i<MAX_HEIGHT;i++) {
- ctx->rowaddr[i] = origin + i * ctx->rowlength;
- }
- }
+ for (i = 0; i < MAX_HEIGHT; i++) {
+ ctx->rowaddr[i] = (GLchan *) ((GLubyte *) origin + i * bytesPerRow);
}
}
else {
/* Y=0 is top line of window */
- if (ctx->format==OSMESA_COLOR_INDEX) {
- /* 1-byte CI mode */
- GLubyte *origin = (GLubyte *) ctx->buffer;
- for (i=0;i<MAX_HEIGHT;i++) {
- ctx->rowaddr[i] = origin + (ctx->height-i-1) * ctx->rowlength;
- }
- }
- else {
- if ((ctx->format==OSMESA_RGB) || (ctx->format==OSMESA_BGR)) {
- /* 3-byte RGB mode */
- GLubyte *origin = (GLubyte *) ctx->buffer;
- for (i=0;i<MAX_HEIGHT;i++) {
- ctx->rowaddr[i] = origin + ((ctx->height-i-1) * (ctx->rowlength*3));
- }
- } else {
- /* 4-byte RGBA mode */
- GLuint *origin = (GLuint *) ctx->buffer;
- for (i=0;i<MAX_HEIGHT;i++) {
- ctx->rowaddr[i] = origin + (ctx->height-i-1) * ctx->rowlength;
- }
- }
+ for (i = 0; i < MAX_HEIGHT; i++) {
+ GLint j = ctx->height - i - 1;
+ ctx->rowaddr[i] = (GLchan *) ((GLubyte *) origin + j * bytesPerRow);
}
}
}
* 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
- * 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.
*/
-GLboolean GLAPIENTRY
+GLAPI GLboolean GLAPIENTRY
OSMesaMakeCurrent( OSMesaContext ctx, void *buffer, GLenum type,
GLsizei width, GLsizei height )
{
- if (!ctx || !buffer || type!=GL_UNSIGNED_BYTE
- || width<1 || height<1 || width>MAX_WIDTH || height>MAX_HEIGHT) {
+ if (!ctx || !buffer ||
+ width < 1 || height < 1 ||
+ width > MAX_WIDTH || height > MAX_HEIGHT) {
return GL_FALSE;
}
- osmesa_update_state( &ctx->gl_ctx );
+ if (ctx->format == OSMESA_RGB_565) {
+ if (type != GL_UNSIGNED_SHORT_5_6_5)
+ return GL_FALSE;
+ }
+ else if (type != CHAN_TYPE) {
+ return GL_FALSE;
+ }
+
+ osmesa_update_state( &ctx->gl_ctx, 0 );
_mesa_make_current( &ctx->gl_ctx, ctx->gl_buffer );
ctx->buffer = buffer;
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;
}
-OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void )
+GLAPI OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void )
{
GLcontext *ctx = _mesa_get_current_context();
if (ctx)
-void GLAPIENTRY OSMesaPixelStore( GLint pname, GLint value )
+GLAPI void GLAPIENTRY OSMesaPixelStore( GLint pname, GLint value )
{
OSMesaContext ctx = OSMesaGetCurrentContext();
switch (pname) {
case OSMESA_ROW_LENGTH:
if (value<0) {
- gl_error( &ctx->gl_ctx, GL_INVALID_VALUE,
+ _mesa_error( &ctx->gl_ctx, GL_INVALID_VALUE,
"OSMesaPixelStore(value)" );
return;
}
ctx->yup = value ? GL_TRUE : GL_FALSE;
break;
default:
- gl_error( &ctx->gl_ctx, GL_INVALID_ENUM, "OSMesaPixelStore(pname)" );
+ _mesa_error( &ctx->gl_ctx, GL_INVALID_ENUM, "OSMesaPixelStore(pname)" );
return;
}
}
-void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value )
+GLAPI void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value )
{
OSMesaContext ctx = OSMesaGetCurrentContext();
*value = ctx->format;
return;
case OSMESA_TYPE:
- *value = GL_UNSIGNED_BYTE;
+ *value = CHAN_TYPE;
return;
case OSMESA_ROW_LENGTH:
*value = ctx->rowlength;
case OSMESA_Y_UP:
*value = ctx->yup;
return;
+ case OSMESA_MAX_WIDTH:
+ *value = MAX_WIDTH;
+ return;
+ case OSMESA_MAX_HEIGHT:
+ *value = MAX_HEIGHT;
+ return;
default:
- gl_error(&ctx->gl_ctx, GL_INVALID_ENUM, "OSMesaGetIntergerv(pname)");
+ _mesa_error(&ctx->gl_ctx, GL_INVALID_ENUM, "OSMesaGetIntergerv(pname)");
return;
}
}
* buffer - pointer to depth buffer values
* Return: GL_TRUE or GL_FALSE to indicate success or failure.
*/
-GLboolean GLAPIENTRY
+GLAPI GLboolean GLAPIENTRY
OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
GLint *bytesPerValue, void **buffer )
{
else {
*width = c->gl_buffer->Width;
*height = c->gl_buffer->Height;
- *bytesPerValue = sizeof(GLdepth);
+ if (c->gl_visual->depthBits <= 16)
+ *bytesPerValue = sizeof(GLushort);
+ else
+ *bytesPerValue = sizeof(GLuint);
*buffer = c->gl_buffer->DepthBuffer;
return GL_TRUE;
}
* buffer - pointer to color buffer values
* Return: GL_TRUE or GL_FALSE to indicate success or failure.
*/
-GLboolean GLAPIENTRY
+GLAPI GLboolean GLAPIENTRY
OSMesaGetColorBuffer( OSMesaContext c, GLint *width,
GLint *height, GLint *format, void **buffer )
{
}
}
+
+
+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:
*/
-#define PACK_RGBA(R,G,B,A) ( ((R) << osmesa->rshift) \
- | ((G) << osmesa->gshift) \
- | ((B) << osmesa->bshift) \
- | ((A) << osmesa->ashift) )
-#define PACK_RGBA2(R,G,B,A) ( ((R) << rshift) \
- | ((G) << gshift) \
- | ((B) << bshift) \
- | ((A) << ashift) )
+#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->gInd] = G; \
+ (DST)[osmesa->bInd] = B; \
+ (DST)[osmesa->aInd] = A; \
+} while (0)
+#endif
-#define UNPACK_RED(P) (((P) >> osmesa->rshift) & 0xff)
-#define UNPACK_GREEN(P) (((P) >> osmesa->gshift) & 0xff)
-#define UNPACK_BLUE(P) (((P) >> osmesa->bshift) & 0xff)
-#define UNPACK_ALPHA(P) (((P) >> osmesa->ashift) & 0xff)
+#define PACK_RGB(DST, R, G, B) \
+do { \
+ (DST)[0] = R; \
+ (DST)[1] = G; \
+ (DST)[2] = B; \
+} while (0)
-#define PIXELADDR1(X,Y) ((GLubyte *) osmesa->rowaddr[Y] + (X))
-#define PIXELADDR3(X,Y) ((GLubyte *) osmesa->rowaddr[Y] + ((X)*3))
-#define PIXELADDR4(X,Y) ((GLuint *) osmesa->rowaddr[Y] + (X))
+#define PACK_BGR(DST, R, G, B) \
+do { \
+ (DST)[0] = B; \
+ (DST)[1] = G; \
+ (DST)[2] = R; \
+} while (0)
+#define PACK_RGB_565(DST, R, G, B) \
+do { \
+ (DST) = (((int) (R) << 8) & 0xf800) | (((int) (G) << 3) & 0x7e0) | ((int) (B) >> 3);\
+} while (0)
+#define UNPACK_RED(P) ( (P)[osmesa->rInd] )
+#define UNPACK_GREEN(P) ( (P)[osmesa->gInd] )
+#define UNPACK_BLUE(P) ( (P)[osmesa->bInd] )
+#define UNPACK_ALPHA(P) ( (P)[osmesa->aInd] )
-static GLboolean set_draw_buffer( GLcontext *ctx, GLenum mode )
-{
- (void) ctx;
- if (mode==GL_FRONT_LEFT) {
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
- }
-}
+#define PIXELADDR1(X,Y) (osmesa->rowaddr[Y] + (X))
+#define PIXELADDR2(X,Y) (osmesa->rowaddr[Y] + 2 * (X))
+#define PIXELADDR3(X,Y) (osmesa->rowaddr[Y] + 3 * (X))
+#define PIXELADDR4(X,Y) (osmesa->rowaddr[Y] + 4 * (X))
-static void set_read_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
-{
- /* separate read buffer not supported */
- ASSERT(buffer == ctx->DrawBuffer);
- ASSERT(mode == GL_FRONT_LEFT);
-}
-static void clear_index( GLcontext *ctx, GLuint index )
+static void set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- osmesa->clearpixel = index;
-}
-
-
-
-static void clear_color( GLcontext *ctx,
- GLchan r, GLchan g, GLchan b, GLchan a )
-{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- osmesa->clearpixel = PACK_RGBA( r, g, b, a );
+ /* separate read buffer not supported */
+ ASSERT(buffer == ctx->DrawBuffer);
+ ASSERT(bufferBit == FRONT_LEFT_BIT);
}
-
-static GLbitfield clear( GLcontext *ctx, GLbitfield mask, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+static void clear( GLcontext *ctx, GLbitfield mask, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
- /* we can't handle color or index masking */
- if (*colorMask != 0xffffffff || ctx->Color.IndexMask != 0xffffffff)
- return mask;
-
/* sanity check - we only have a front-left buffer */
ASSERT((mask & (DD_FRONT_RIGHT_BIT | DD_BACK_LEFT_BIT | DD_BACK_RIGHT_BIT)) == 0);
-
- if (mask & DD_FRONT_LEFT_BIT) {
- if (osmesa->format==OSMESA_COLOR_INDEX) {
- if (all) {
- /* Clear whole CI buffer */
- MEMSET(osmesa->buffer, osmesa->clearpixel,
- osmesa->rowlength * osmesa->height);
- }
- else {
- /* Clear part of CI buffer */
- GLint i, j;
- for (i=0;i<height;i++) {
- GLubyte *ptr1 = PIXELADDR1( x, (y+i) );
- for (j=0;j<width;j++) {
- *ptr1++ = osmesa->clearpixel;
- }
- }
- }
- }
- else if ((osmesa->format==OSMESA_RGB)||(osmesa->format==OSMESA_BGR)) {
- GLubyte rval = UNPACK_RED(osmesa->clearpixel);
- GLubyte gval = UNPACK_GREEN(osmesa->clearpixel);
- GLubyte bval = UNPACK_BLUE(osmesa->clearpixel);
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
- if (all) {
- GLuint i, n;
- GLubyte *ptr3 = (GLubyte *) osmesa->buffer;
- /* Clear whole RGB buffer */
- n = osmesa->rowlength * osmesa->height;
- for (i=0;i<n;i++) {
- ptr3[rind] = rval;
- ptr3[gind] = gval;
- ptr3[bind] = bval;
- ptr3 += 3;
- }
- }
- else {
- /* Clear part of RGB buffer */
- GLint i, j;
- for (i=0;i<height;i++) {
- GLubyte *ptr3 = PIXELADDR3( x, (y+i) );
- for (j=0;j<width;j++) {
- ptr3[rind] = rval;
- ptr3[gind] = gval;
- ptr3[bind] = bval;
- ptr3 += 3;
- }
- }
- }
- }
- else {
- if (all) {
- /* Clear whole RGBA buffer */
- GLuint i, n, *ptr4;
- n = osmesa->rowlength * osmesa->height;
- ptr4 = (GLuint *) osmesa->buffer;
- if (osmesa->clearpixel) {
- for (i=0;i<n;i++) {
- *ptr4++ = osmesa->clearpixel;
+ if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
+ if (mask & DD_FRONT_LEFT_BIT) {
+ if (osmesa->format == OSMESA_COLOR_INDEX) {
+ if (all) {
+ /* Clear whole CI buffer */
+#if CHAN_TYPE == GL_UNSIGNED_BYTE
+ MEMSET(osmesa->buffer, ctx->Color.ClearIndex,
+ osmesa->rowlength * osmesa->height);
+#else
+ const GLint n = osmesa->rowlength * osmesa->height;
+ GLchan *buffer = (GLchan *) osmesa->buffer;
+ GLint i;
+ for (i = 0; i < n; i ++) {
+ buffer[i] = ctx->Color.ClearIndex;
+ }
+#endif
+ }
+ else {
+ /* Clear part of CI buffer */
+ const GLchan clearIndex = (GLchan) ctx->Color.ClearIndex;
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ GLchan *ptr1 = PIXELADDR1(x, (y + i));
+ for (j = 0; j < width; j++) {
+ *ptr1++ = clearIndex;
+ }
+ }
+ }
+ }
+ else if (osmesa->format == OSMESA_RGB) {
+ 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;
+ GLchan *ptr3 = (GLchan *) osmesa->buffer;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ PACK_RGB(ptr3, r, g, b);
+ ptr3 += 3;
+ }
+ }
+ else {
+ /* Clear part of RGB buffer */
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ GLchan *ptr3 = PIXELADDR3(x, (y + i));
+ for (j = 0; j < width; j++) {
+ PACK_RGB(ptr3, r, g, b);
+ ptr3 += 3;
+ }
+ }
+ }
+ }
+ else if (osmesa->format == OSMESA_BGR) {
+ 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;
+ GLchan *ptr3 = (GLchan *) osmesa->buffer;
+ GLint i;
+ for (i = 0; i < n; i++) {
+ PACK_BGR(ptr3, r, g, b);
+ ptr3 += 3;
+ }
+ }
+ else {
+ /* Clear part of RGB buffer */
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ GLchan *ptr3 = PIXELADDR3(x, (y + i));
+ for (j = 0; j < width; j++) {
+ PACK_BGR(ptr3, r, g, b);
+ ptr3 += 3;
+ }
+ }
+ }
+ }
+ else if (osmesa->format == OSMESA_RGB_565) {
+ 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 */
+ const GLuint n = osmesa->rowlength * osmesa->height;
+ GLushort *ptr2 = (GLushort *) osmesa->buffer;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ *ptr2 = clearPixel;
+ ptr2++;
}
}
else {
- BZERO(ptr4, n * sizeof(GLuint));
- }
- }
- else {
- /* Clear part of RGBA buffer */
- GLint i, j;
- for (i=0;i<height;i++) {
- GLuint *ptr4 = PIXELADDR4( x, (y+i) );
- for (j=0;j<width;j++) {
- *ptr4++ = osmesa->clearpixel;
+ /* clear scissored region */
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ GLushort *ptr2 = (GLushort *) PIXELADDR2(x, (y + i));
+ for (j = 0; j < width; j++) {
+ *ptr2 = clearPixel;
+ ptr2++;
+ }
}
}
}
+ else {
+#if CHAN_TYPE == GL_UNSIGNED_BYTE
+ /* 4-byte pixel value */
+ GLuint clearPixel;
+ GLchan *clr = (GLchan *) &clearPixel;
+ 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;
+ GLuint *ptr4 = (GLuint *) osmesa->buffer;
+ GLuint i;
+ if (clearPixel) {
+ for (i = 0; i < n; i++) {
+ *ptr4++ = clearPixel;
+ }
+ }
+ else {
+ BZERO(ptr4, n * sizeof(GLuint));
+ }
+ }
+ else {
+ /* Clear part of RGBA buffer */
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ GLuint *ptr4 = (GLuint *) PIXELADDR4(x, (y + i));
+ for (j = 0; j < width; j++) {
+ *ptr4++ = clearPixel;
+ }
+ }
+ }
+#else
+ 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;
+ GLchan *p = (GLchan *) osmesa->buffer;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ PACK_RGBA(p, r, g, b, a);
+ p += 4;
+ }
+ }
+ else {
+ /* Clear part of RGBA buffer */
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ GLchan *p = PIXELADDR4(x, (y + i));
+ for (j = 0; j < width; j++) {
+ PACK_RGBA(p, r, g, b, a);
+ p += 4;
+ }
+ }
+ }
+
+#endif
+ }
+ mask &= ~DD_FRONT_LEFT_BIT;
}
}
- /* have Mesa clear all other buffers */
- return mask & (~DD_FRONT_LEFT_BIT);
-}
-
-
-
-static void set_index( GLcontext *ctx, GLuint index )
-{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- osmesa->pixel = index;
+
+ if (mask)
+ _swrast_Clear( ctx, mask, all, x, y, width, height );
}
-static void set_color( GLcontext *ctx,
- GLchan r, GLchan g, GLchan b, GLchan a )
+static void buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- osmesa->pixel = PACK_RGBA( r, g, b, a );
-}
-
-
-
-static void buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
-{
- OSMesaContext osmesa = (OSMesaContext) 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;
+ }
}
/**********************************************************************/
/* Write RGBA pixels to an RGBA (or permuted) buffer. */
-static void write_rgba_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLchan rgba[][4], const GLubyte mask[] )
+static void
+write_rgba_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLuint *ptr4 = PIXELADDR4( x, y );
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR4(x, y);
GLuint i;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint ashift = osmesa->ashift;
if (mask) {
- for (i=0;i<n;i++,ptr4++) {
+ for (i = 0; i < n; i++, p += 4) {
if (mask[i]) {
- *ptr4 = PACK_RGBA2( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ PACK_RGBA(p, rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP], rgba[i][ACOMP]);
}
}
}
else {
- for (i=0;i<n;i++,ptr4++) {
- *ptr4 = PACK_RGBA2( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ for (i = 0; i < n; i++, p += 4) {
+ PACK_RGBA(p, rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP], rgba[i][ACOMP]);
}
}
}
/* Write RGBA pixels to an RGBA buffer. This is the fastest span-writer. */
-static void write_rgba_span_rgba( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLchan rgba[][4],
- const GLubyte mask[] )
+static void
+write_rgba_span_rgba( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLuint *ptr4 = PIXELADDR4( x, y );
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLuint *ptr4 = (GLuint *) PIXELADDR4(x, y);
const GLuint *rgba4 = (const GLuint *) rgba;
GLuint i;
+ ASSERT(CHAN_TYPE == GL_UNSIGNED_BYTE);
if (mask) {
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
if (mask[i]) {
ptr4[i] = rgba4[i];
}
/* Write RGB pixels to an RGBA (or permuted) buffer. */
-static void write_rgb_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLchan rgb[][3], const GLubyte mask[] )
+static void
+write_rgb_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgb[][3], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLuint *ptr4 = PIXELADDR4( x, y );
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR4(x, y);
GLuint i;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint ashift = osmesa->ashift;
if (mask) {
- for (i=0;i<n;i++,ptr4++) {
+ for (i = 0; i < n; i++, p+=4) {
if (mask[i]) {
- *ptr4 = PACK_RGBA2( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 );
+ PACK_RGBA(p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], CHAN_MAX);
}
}
}
else {
- for (i=0;i<n;i++,ptr4++) {
- *ptr4 = PACK_RGBA2( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255);
+ for (i = 0; i < n; i++, p+=4) {
+ PACK_RGBA(p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], CHAN_MAX);
}
}
}
-static void write_monocolor_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
+static void
+write_monocolor_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLuint *ptr4 = PIXELADDR4(x,y);
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR4(x, y);
GLuint i;
- for (i=0;i<n;i++,ptr4++) {
+ for (i = 0; i < n; i++, p += 4) {
if (mask[i]) {
- *ptr4 = osmesa->pixel;
+ PACK_RGBA(p, color[RCOMP], color[GCOMP], color[BCOMP], color[ACOMP]);
}
}
}
-static void write_rgba_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- CONST GLchan rgba[][4], const GLubyte mask[] )
+static void
+write_rgba_pixels( const GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ CONST GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint ashift = osmesa->ashift;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
if (mask[i]) {
- GLuint *ptr4 = PIXELADDR4(x[i],y[i]);
- *ptr4 = PACK_RGBA2( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] );
+ GLchan *p = PIXELADDR4(x[i], y[i]);
+ PACK_RGBA(p, rgba[i][RCOMP], rgba[i][GCOMP],
+ rgba[i][BCOMP], rgba[i][ACOMP]);
}
}
}
-static void write_monocolor_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
+static void
+write_monocolor_pixels( const GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLchan color[4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
if (mask[i]) {
- GLuint *ptr4 = PIXELADDR4(x[i],y[i]);
- *ptr4 = osmesa->pixel;
+ GLchan *p = PIXELADDR4(x[i], y[i]);
+ PACK_RGBA(p, color[RCOMP], color[GCOMP], color[BCOMP], color[ACOMP]);
}
}
}
-static void read_rgba_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLchan rgba[][4] )
+static void
+read_rgba_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLchan rgba[][4] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- GLuint *ptr4 = PIXELADDR4(x,y);
- for (i=0;i<n;i++) {
- GLuint pixel = *ptr4++;
- rgba[i][RCOMP] = UNPACK_RED(pixel);
- rgba[i][GCOMP] = UNPACK_GREEN(pixel);
- rgba[i][BCOMP] = UNPACK_BLUE(pixel);
- rgba[i][ACOMP] = UNPACK_ALPHA(pixel);
+ GLchan *p = PIXELADDR4(x, y);
+ for (i = 0; i < n; i++, p += 4) {
+ rgba[i][RCOMP] = UNPACK_RED(p);
+ rgba[i][GCOMP] = UNPACK_GREEN(p);
+ rgba[i][BCOMP] = UNPACK_BLUE(p);
+ rgba[i][ACOMP] = UNPACK_ALPHA(p);
}
}
/* Read RGBA pixels from an RGBA buffer */
-static void read_rgba_span_rgba( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- GLchan rgba[][4] )
+static void
+read_rgba_span_rgba( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLchan rgba[][4] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLuint *ptr4 = PIXELADDR4(x,y);
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLuint *ptr4 = (GLuint *) PIXELADDR4(x, y);
MEMCPY( rgba, ptr4, n * 4 * sizeof(GLchan) );
}
-static void read_rgba_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLchan rgba[][4], const GLubyte mask[] )
+static void
+read_rgba_pixels( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
if (mask[i]) {
- GLuint *ptr4 = PIXELADDR4(x[i],y[i]);
- GLuint pixel = *ptr4;
- rgba[i][RCOMP] = UNPACK_RED(pixel);
- rgba[i][GCOMP] = UNPACK_GREEN(pixel);
- rgba[i][BCOMP] = UNPACK_BLUE(pixel);
- rgba[i][ACOMP] = UNPACK_ALPHA(pixel);
+ const GLchan *p = PIXELADDR4(x[i], y[i]);
+ rgba[i][RCOMP] = UNPACK_RED(p);
+ rgba[i][GCOMP] = UNPACK_GREEN(p);
+ rgba[i][BCOMP] = UNPACK_BLUE(p);
+ rgba[i][ACOMP] = UNPACK_ALPHA(p);
}
}
}
/***** 3 byte RGB pixel support funcs *****/
/**********************************************************************/
-/* Write RGBA pixels to an RGB or BGR buffer. */
-static void write_rgba_span3( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLchan rgba[][4], const GLubyte mask[] )
+/* Write RGBA pixels to an RGB buffer. */
+static void
+write_rgba_span_RGB( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgba[][4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR3(x, y);
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < n; i++, p += 3) {
+ if (mask[i]) {
+ PACK_RGB(p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+ }
+ else {
+ for (i = 0; i < n; i++, p += 3) {
+ PACK_RGB(p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+}
+
+/* Write RGBA pixels to an BGR buffer. */
+static void
+write_rgba_span_BGR( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgba[][4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR3(x, y);
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < n; i++, p += 3) {
+ if (mask[i]) {
+ PACK_BGR(p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+ }
+ else {
+ for (i = 0; i < n; i++, p += 3) {
+ PACK_BGR(p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+}
+
+/* Write RGB pixels to an RGB buffer. */
+static void
+write_rgb_span_RGB( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgb[][3], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR3(x, y);
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < n; i++, p += 3) {
+ if (mask[i]) {
+ PACK_RGB(p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ }
+ }
+ else {
+ for (i = 0; i < n; i++, p += 3) {
+ PACK_RGB(p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ }
+}
+
+/* Write RGB pixels to an BGR buffer. */
+static void
+write_rgb_span_BGR( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ CONST GLchan rgb[][3], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR3(x, y);
+ GLuint i;
+ if (mask) {
+ for (i = 0; i < n; i++, p += 3) {
+ if (mask[i]) {
+ PACK_BGR(p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ }
+ }
+ else {
+ for (i = 0; i < n; i++, p += 3) {
+ PACK_BGR(p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ }
+}
+
+
+static void
+write_monocolor_span_RGB( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR3(x, y);
+ GLuint i;
+ for (i = 0; i < n; i++, p += 3) {
+ if (mask[i]) {
+ PACK_RGB(p, color[RCOMP], color[GCOMP], color[BCOMP]);
+ }
+ }
+}
+
+static void
+write_monocolor_span_BGR( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *p = PIXELADDR3(x, y);
+ GLuint i;
+ for (i = 0; i < n; i++, p += 3) {
+ if (mask[i]) {
+ PACK_BGR(p, color[RCOMP], color[GCOMP], color[BCOMP]);
+ }
+ }
+}
+
+static void
+write_rgba_pixels_RGB( const GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ CONST GLchan rgba[][4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = (const OSMesaContext) ctx;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ GLchan *p = PIXELADDR3(x[i], y[i]);
+ PACK_RGB(p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+}
+
+static void
+write_rgba_pixels_BGR( const GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ CONST GLchan rgba[][4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = (const OSMesaContext) ctx;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ GLchan *p = PIXELADDR3(x[i], y[i]);
+ PACK_BGR(p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ }
+}
+
+static void
+write_monocolor_pixels_RGB( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLchan color[4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ GLchan *p = PIXELADDR3(x[i], y[i]);
+ PACK_RGB(p, color[RCOMP], color[GCOMP], color[BCOMP]);
+ }
+ }
+}
+
+static void
+write_monocolor_pixels_BGR( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLchan color[4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ GLchan *p = PIXELADDR3(x[i], y[i]);
+ PACK_BGR(p, color[RCOMP], color[GCOMP], color[BCOMP]);
+ }
+ }
+}
+
+static void
+read_rgba_span3( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLchan rgba[][4] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLuint i;
+ const GLchan *p = PIXELADDR3(x, y);
+ for (i = 0; i < n; i++, p += 3) {
+ rgba[i][RCOMP] = UNPACK_RED(p);
+ rgba[i][GCOMP] = UNPACK_GREEN(p);
+ rgba[i][BCOMP] = UNPACK_BLUE(p);
+ rgba[i][ACOMP] = CHAN_MAX;
+ }
+}
+
+static void
+read_rgba_pixels3( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLchan rgba[][4], const GLubyte mask[] )
+{
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ const GLchan *p = PIXELADDR3(x[i], y[i]);
+ rgba[i][RCOMP] = UNPACK_RED(p);
+ rgba[i][GCOMP] = UNPACK_GREEN(p);
+ rgba[i][BCOMP] = UNPACK_BLUE(p);
+ rgba[i][ACOMP] = CHAN_MAX;
+ }
+ }
+}
+
+
+/**********************************************************************/
+/***** 2 byte RGB pixel support funcs *****/
+/**********************************************************************/
+
+/* Write RGBA pixels to an RGB_565 buffer. */
+static void
+write_rgba_span2( const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ CONST GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *ptr3 = PIXELADDR3( x, y);
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLushort *ptr2 = (GLushort *) PIXELADDR2(x, y);
GLuint i;
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
if (mask) {
- for (i=0;i<n;i++,ptr3+=3) {
+ for (i = 0; i < n; i++, ptr2++) {
if (mask[i]) {
- ptr3[rind] = rgba[i][RCOMP];
- ptr3[gind] = rgba[i][GCOMP];
- ptr3[bind] = rgba[i][BCOMP];
+ PACK_RGB_565(*ptr2, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
}
}
}
else {
- for (i=0;i<n;i++,ptr3+=3) {
- ptr3[rind] = rgba[i][RCOMP];
- ptr3[gind] = rgba[i][GCOMP];
- ptr3[bind] = rgba[i][BCOMP];
+ for (i = 0; i < n; i++, ptr2++) {
+ PACK_RGB_565(*ptr2, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
}
}
}
-/* Write RGB pixels to an RGB or BGR buffer. */
-static void write_rgb_span3( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLchan rgb[][3], const GLubyte mask[] )
+
+/* Write RGB pixels to an RGB_565 buffer. */
+static void
+write_rgb_span2( const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ CONST GLchan rgb[][3], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *ptr3 = PIXELADDR3( x, y);
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLushort *ptr2 = (GLushort *) PIXELADDR2(x, y);
GLuint i;
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
if (mask) {
- for (i=0;i<n;i++,ptr3+=3) {
+ for (i = 0; i < n; i++, ptr2++) {
if (mask[i]) {
- ptr3[rind] = rgb[i][RCOMP];
- ptr3[gind] = rgb[i][GCOMP];
- ptr3[bind] = rgb[i][BCOMP];
+ PACK_RGB_565(*ptr2, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
}
}
}
else {
- for (i=0;i<n;i++,ptr3+=3) {
- ptr3[rind] = rgb[i][RCOMP];
- ptr3[gind] = rgb[i][GCOMP];
- ptr3[bind] = rgb[i][BCOMP];
+ for (i = 0; i < n; i++, ptr2++) {
+ PACK_RGB_565(*ptr2, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
}
}
}
-static void write_monocolor_span3( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
+static void
+write_monocolor_span2( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
-
- GLubyte rval = UNPACK_RED(osmesa->pixel);
- GLubyte gval = UNPACK_GREEN(osmesa->pixel);
- GLubyte bval = UNPACK_BLUE(osmesa->pixel);
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
- GLubyte *ptr3 = PIXELADDR3( x, y);
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLushort pixel;
+ GLushort *ptr2 = (GLushort *) PIXELADDR2(x, y);
GLuint i;
- for (i=0;i<n;i++,ptr3+=3) {
+ PACK_RGB_565(pixel, color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i = 0; i < n; i++, ptr2++) {
if (mask[i]) {
- ptr3[rind] = rval;
- ptr3[gind] = gval;
- ptr3[bind] = bval;
+ *ptr2 = pixel;
}
}
}
-static void write_rgba_pixels3( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- CONST GLchan rgba[][4], const GLubyte mask[] )
+
+static void
+write_rgba_pixels2( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ CONST GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
if (mask[i]) {
- GLubyte *ptr3 = PIXELADDR3(x[i],y[i]);
- ptr3[rind] = rgba[i][RCOMP];
- ptr3[gind] = rgba[i][GCOMP];
- ptr3[bind] = rgba[i][BCOMP];
+ GLushort *ptr2 = (GLushort *) PIXELADDR2(x[i],y[i]);
+ PACK_RGB_565(*ptr2, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
}
}
}
-static void write_monocolor_pixels3( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
+static void
+write_monocolor_pixels2( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLchan color[4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
- GLubyte rval = UNPACK_RED(osmesa->pixel);
- GLubyte gval = UNPACK_GREEN(osmesa->pixel);
- GLubyte bval = UNPACK_BLUE(osmesa->pixel);
- for (i=0;i<n;i++) {
+ GLushort pixel;
+ PACK_RGB_565(pixel, color[RCOMP], color[GCOMP], color[BCOMP]);
+ for (i = 0; i < n; i++) {
if (mask[i]) {
- GLubyte *ptr3 = PIXELADDR3(x[i],y[i]);
- ptr3[rind] = rval;
- ptr3[gind] = gval;
- ptr3[bind] = bval;
+ GLushort *ptr2 = (GLushort *) PIXELADDR2(x[i],y[i]);
+ *ptr2 = pixel;
}
}
}
-static void read_rgba_span3( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- GLchan rgba[][4] )
+static void
+read_rgba_span2( const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ GLchan rgba[][4] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
- const GLubyte *ptr3 = PIXELADDR3( x, y);
- for (i=0;i<n;i++,ptr3+=3) {
- rgba[i][RCOMP] = ptr3[rind];
- rgba[i][GCOMP] = ptr3[gind];
- rgba[i][BCOMP] = ptr3[bind];
+ const GLushort *ptr2 = (const GLushort *) PIXELADDR2(x, y);
+ for (i = 0; i < n; i++, ptr2++) {
+ /* This should be fixed to get the low bits right */
+ rgba[i][RCOMP] = (*ptr2 >> 8) & 0xFe;
+ rgba[i][GCOMP] = (*ptr2 >> 3) & 0xFc;
+ rgba[i][BCOMP] = (*ptr2 << 3) & 0xFe;
rgba[i][ACOMP] = 0;
}
}
-static void read_rgba_pixels3( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLchan rgba[][4], const GLubyte mask[] )
+static void
+read_rgba_pixels2( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLchan rgba[][4], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- GLint rind = osmesa->rind;
- GLint gind = osmesa->gind;
- GLint bind = osmesa->bind;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
if (mask[i]) {
- const GLubyte *ptr3 = PIXELADDR3(x[i],y[i]);
- rgba[i][RCOMP] = ptr3[rind];
- rgba[i][GCOMP] = ptr3[gind];
- rgba[i][BCOMP] = ptr3[bind];
+ /* This should be fixed to get the low bits right */
+ const GLushort *ptr2 = (const GLushort *) PIXELADDR2(x[i],y[i]);
+ rgba[i][RCOMP] = (*ptr2 >> 8) & 0xFE;
+ rgba[i][GCOMP] = (*ptr2 >> 3) & 0xFC;
+ rgba[i][BCOMP] = (*ptr2 << 3) & 0xFE;
rgba[i][ACOMP] = 0;
}
}
}
+
/**********************************************************************/
/***** Read/write spans/arrays of CI pixels *****/
/**********************************************************************/
/* Write 32-bit color index to buffer */
-static void write_index32_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLuint index[], const GLubyte mask[] )
+static void
+write_index32_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLuint index[], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *ptr1 = PIXELADDR1(x,y);
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *ptr1 = PIXELADDR1(x, y);
GLuint i;
if (mask) {
for (i=0;i<n;i++,ptr1++) {
if (mask[i]) {
- *ptr1 = (GLubyte) index[i];
+ *ptr1 = (GLchan) index[i];
}
}
}
else {
for (i=0;i<n;i++,ptr1++) {
- *ptr1 = (GLubyte) index[i];
+ *ptr1 = (GLchan) index[i];
}
}
}
/* Write 8-bit color index to buffer */
-static void write_index8_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte index[], const GLubyte mask[] )
+static void
+write_index8_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte index[], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *ptr1 = PIXELADDR1(x,y);
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *ptr1 = PIXELADDR1(x, y);
GLuint i;
if (mask) {
for (i=0;i<n;i++,ptr1++) {
if (mask[i]) {
- *ptr1 = (GLubyte) index[i];
+ *ptr1 = (GLchan) index[i];
}
}
}
else {
- MEMCPY( ptr1, index, n );
+ MEMCPY(ptr1, index, n * sizeof(GLchan));
}
}
-static void write_monoindex_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
+static void
+write_monoindex_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLuint colorIndex, const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *ptr1 = PIXELADDR1(x,y);
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ GLchan *ptr1 = PIXELADDR1(x, y);
GLuint i;
for (i=0;i<n;i++,ptr1++) {
if (mask[i]) {
- *ptr1 = (GLubyte) osmesa->pixel;
+ *ptr1 = (GLchan) colorIndex;
}
}
}
-static void write_index_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLuint index[], const GLubyte mask[] )
+static void
+write_index_pixels( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLuint index[], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
for (i=0;i<n;i++) {
if (mask[i]) {
- GLubyte *ptr1 = PIXELADDR1(x[i],y[i]);
- *ptr1 = (GLubyte) index[i];
+ GLchan *ptr1 = PIXELADDR1(x[i], y[i]);
+ *ptr1 = (GLchan) index[i];
}
}
}
-static void write_monoindex_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
+static void
+write_monoindex_pixels( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint colorIndex, const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
for (i=0;i<n;i++) {
if (mask[i]) {
- GLubyte *ptr1 = PIXELADDR1(x[i],y[i]);
- *ptr1 = (GLubyte) osmesa->pixel;
+ GLchan *ptr1 = PIXELADDR1(x[i], y[i]);
+ *ptr1 = (GLchan) colorIndex;
}
}
}
-static void read_index_span( const GLcontext *ctx,
- GLuint n, GLint x, GLint y, GLuint index[] )
+static void
+read_index_span( const GLcontext *ctx,
+ GLuint n, GLint x, GLint y, GLuint index[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
- const GLubyte *ptr1 = PIXELADDR1(x,y);
+ const GLchan *ptr1 = (const GLchan *) PIXELADDR1(x, y);
for (i=0;i<n;i++,ptr1++) {
index[i] = (GLuint) *ptr1;
}
}
-static void read_index_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLuint index[], const GLubyte mask[] )
+static void
+read_index_pixels( const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint index[], const GLubyte mask[] )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
GLuint i;
for (i=0;i<n;i++) {
if (mask[i] ) {
- const GLubyte *ptr1 = PIXELADDR1(x[i],y[i]);
+ const GLchan *ptr1 = PIXELADDR1(x[i], y[i]);
index[i] = (GLuint) *ptr1;
}
}
/*
* Draw a flat-shaded, RGB line into an osmesa buffer.
*/
-static void flat_rgba_line( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+static void
+flat_rgba_line( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *color = ctx->VB->ColorPtr->data[pvert];
- unsigned long pixel = PACK_RGBA( color[0], color[1], color[2], color[3] );
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const GLchan *color = vert1->color;
#define INTERP_XY 1
#define CLIP_HACK 1
-#define PLOT(X,Y) { GLuint *ptr4 = PIXELADDR4(X,Y); *ptr4 = pixel; }
+#define PLOT(X, Y) \
+do { \
+ GLchan *p = PIXELADDR4(X, Y); \
+ PACK_RGBA(p, color[0], color[1], color[2], color[3]); \
+} while (0)
#ifdef WIN32
-#include "..\linetemp.h"
+#include "..\swrast\s_linetemp.h"
#else
-#include "linetemp.h"
+#include "swrast/s_linetemp.h"
#endif
}
/*
* Draw a flat-shaded, Z-less, RGB line into an osmesa buffer.
*/
-static void flat_rgba_z_line( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+static void
+flat_rgba_z_line(GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1)
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLubyte *color = ctx->VB->ColorPtr->data[pvert];
- unsigned long pixel = PACK_RGBA( color[0], color[1], color[2], color[3] );
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const GLchan *color = vert1->color;
#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); \
- *ptr4 = pixel; \
- *zPtr = Z; \
- }
+#define PLOT(X, Y) \
+do { \
+ if (Z < *zPtr) { \
+ GLchan *p = PIXELADDR4(X, Y); \
+ PACK_RGBA(p, color[RCOMP], color[GCOMP], \
+ color[BCOMP], color[ACOMP]); \
+ *zPtr = Z; \
+ } \
+} while (0)
+
#ifdef WIN32
-#include "..\linetemp.h"
+#include "..\swrast\s_linetemp.h"
#else
-#include "linetemp.h"
+#include "swrast/s_linetemp.h"
#endif
}
/*
* Draw a flat-shaded, alpha-blended, RGB line into an osmesa buffer.
+ * XXX update for GLchan
*/
-static void flat_blend_rgba_line( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+static void
+flat_blend_rgba_line( GLcontext *ctx,
+ const SWvertex *vert0, const SWvertex *vert1 )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- struct vertex_buffer *VB = ctx->VB;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint avalue = VB->ColorPtr->data[pvert][3];
- GLint msavalue = 255 - avalue;
- GLint rvalue = VB->ColorPtr->data[pvert][0]*avalue;
- GLint gvalue = VB->ColorPtr->data[pvert][1]*avalue;
- GLint bvalue = VB->ColorPtr->data[pvert][2]*avalue;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const GLint rshift = osmesa->rshift;
+ const GLint gshift = osmesa->gshift;
+ const GLint bshift = osmesa->bshift;
+ const GLint avalue = vert0->color[3];
+ const GLint msavalue = CHAN_MAX - avalue;
+ const GLint rvalue = vert1->color[0]*avalue;
+ const GLint gvalue = vert1->color[1]*avalue;
+ const GLint bvalue = vert1->color[2]*avalue;
#define INTERP_XY 1
#define CLIP_HACK 1
#define PLOT(X,Y) \
- { GLuint *ptr4 = PIXELADDR4(X,Y); \
+ { GLuint *ptr4 = (GLuint *) PIXELADDR4(X, Y); \
GLuint pixel = 0; \
pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift);\
pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift);\
*ptr4 = pixel; \
}
+#if 0 /* XXX use this in the future */
+#define PLOT(X,Y) \
+ { \
+ GLchan *pixel = (GLchan *) PIXELADDR4(X, Y); \
+ pixel[rInd] = (pixel[rInd] * msavalue + rvalue) >> CHAN_BITS; \
+ pixel[gInd] = (pixel[gInd] * msavalue + gvalue) >> CHAN_BITS; \
+ pixel[bInd] = (pixel[bInd] * msavalue + bvalue) >> CHAN_BITS; \
+ pixel[aInd] = (pixel[aInd] * msavalue + avalue) >> CHAN_BITS; \
+ }
+#endif
+
#ifdef WIN32
-#include "..\linetemp.h"
+#include "..\swrast\s_linetemp.h"
#else
-#include "linetemp.h"
+#include "swrast/s_linetemp.h"
#endif
}
/*
* Draw a flat-shaded, Z-less, alpha-blended, RGB line into an osmesa buffer.
+ * But don't write to Z buffer.
+ * XXX update for GLchan
*/
-static void flat_blend_rgba_z_line( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+static void
+flat_blend_rgba_z_line( GLcontext *ctx,
+ const SWvertex *vert0, const SWvertex *vert1 )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- struct vertex_buffer *VB = ctx->VB;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint avalue = VB->ColorPtr->data[pvert][3];
- GLint msavalue = 256 - avalue;
- GLint rvalue = VB->ColorPtr->data[pvert][0]*avalue;
- GLint gvalue = VB->ColorPtr->data[pvert][1]*avalue;
- GLint bvalue = VB->ColorPtr->data[pvert][2]*avalue;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const GLint rshift = osmesa->rshift;
+ const GLint gshift = osmesa->gshift;
+ const GLint bshift = osmesa->bshift;
+ const GLint avalue = vert0->color[3];
+ const GLint msavalue = 256 - avalue;
+ const GLint rvalue = vert1->color[0]*avalue;
+ const GLint gvalue = vert1->color[1]*avalue;
+ const GLint bvalue = vert1->color[2]*avalue;
#define INTERP_XY 1
#define INTERP_Z 1
#define CLIP_HACK 1
#define PLOT(X,Y) \
if (Z < *zPtr) { \
- GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint *ptr4 = (GLuint *) PIXELADDR4(X, Y); \
GLuint pixel = 0; \
pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift); \
pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift); \
*ptr4 = pixel; \
}
+#if 0 /* XXX use this in the future */
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ GLchan *pixel = (GLchan *) PIXELADDR4(X, Y); \
+ pixel[rInd] = (pixel[rInd] * msavalue + rvalue) >> CHAN_BITS; \
+ pixel[gInd] = (pixel[gInd] * msavalue + gvalue) >> CHAN_BITS; \
+ pixel[bInd] = (pixel[bInd] * msavalue + bvalue) >> CHAN_BITS; \
+ pixel[aInd] = (pixel[aInd] * msavalue + avalue) >> CHAN_BITS; \
+ }
+#endif
+
#ifdef WIN32
-#include "..\linetemp.h"
+#include "..\swrast\s_linetemp.h"
#else
-#include "linetemp.h"
+#include "swrast/s_linetemp.h"
#endif
}
/*
* Draw a flat-shaded, Z-less, alpha-blended, RGB line into an osmesa buffer.
+ * XXX update for GLchan
*/
-static void flat_blend_rgba_z_line_write( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
+static void
+flat_blend_rgba_z_line_write( GLcontext *ctx,
+ const SWvertex *vert0, const SWvertex *vert1 )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- struct vertex_buffer *VB = ctx->VB;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint avalue = VB->ColorPtr->data[pvert][3];
- GLint msavalue = 256 - avalue;
- GLint rvalue = VB->ColorPtr->data[pvert][0]*avalue;
- GLint gvalue = VB->ColorPtr->data[pvert][1]*avalue;
- GLint bvalue = VB->ColorPtr->data[pvert][2]*avalue;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const GLint rshift = osmesa->rshift;
+ const GLint gshift = osmesa->gshift;
+ const GLint bshift = osmesa->bshift;
+ const GLint avalue = vert0->color[3];
+ const GLint msavalue = 256 - avalue;
+ const GLint rvalue = vert1->color[0]*avalue;
+ const GLint gvalue = vert1->color[1]*avalue;
+ const GLint bvalue = vert1->color[2]*avalue;
#define INTERP_XY 1
#define INTERP_Z 1
#define CLIP_HACK 1
#define PLOT(X,Y) \
if (Z < *zPtr) { \
- GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint *ptr4 = (GLuint *) PIXELADDR4(X, Y); \
GLuint pixel = 0; \
pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift); \
pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift); \
*zPtr = Z; \
}
+#if 0 /* XXX use this in the future */
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ GLchan *pixel = (GLchan *) PIXELADDR4(X, Y); \
+ pixel[rInd] = (pixel[rInd] * msavalue + rvalue) >> CHAN_BITS; \
+ pixel[gInd] = (pixel[gInd] * msavalue + gvalue) >> CHAN_BITS; \
+ pixel[bInd] = (pixel[bInd] * msavalue + bvalue) >> CHAN_BITS; \
+ pixel[aInd] = (pixel[aInd] * msavalue + avalue) >> CHAN_BITS; \
+ *zPtr = Z; \
+ }
+#endif
+
#ifdef WIN32
-#include "..\linetemp.h"
+#include "..\swrast\s_linetemp.h"
#else
-#include "linetemp.h"
+#include "swrast/s_linetemp.h"
#endif
}
* Analyze context state to see if we can provide a fast line drawing
* function, like those in lines.c. Otherwise, return NULL.
*/
-static line_func choose_line_function( GLcontext *ctx )
+static swrast_line_func
+osmesa_choose_line_function( GLcontext *ctx )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ if (CHAN_BITS != 8) return NULL;
+ if (ctx->RenderMode != GL_RENDER) return NULL;
+ if (ctx->Line.SmoothFlag) 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;
if (ctx->Line.SmoothFlag) return NULL;
- if (ctx->Texture.ReallyEnabled) return NULL;
- if (ctx->Light.ShadeModel!=GL_FLAT) return NULL;
-
- if (ctx->Line.Width==1.0F
- && ctx->Line.StippleFlag==GL_FALSE) {
-
- if (ctx->RasterMask==DEPTH_BIT
- && ctx->Depth.Func==GL_LESS
- && ctx->Depth.Mask==GL_TRUE
- && ctx->Visual.DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
- switch(osmesa->format) {
- case OSMESA_RGBA:
- case OSMESA_BGRA:
- case OSMESA_ARGB:
- return flat_rgba_z_line;
- default:
- return NULL;
- }
- }
-
- if (ctx->RasterMask==0) {
- switch(osmesa->format) {
- case OSMESA_RGBA:
- case OSMESA_BGRA:
- case OSMESA_ARGB:
- return flat_rgba_line;
- default:
- return NULL;
- }
- }
-
- 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
- && ctx->Color.BlendDstA==GL_ONE_MINUS_SRC_ALPHA
- && ctx->Color.BlendEquation==GL_FUNC_ADD_EXT) {
- switch(osmesa->format) {
- case OSMESA_RGBA:
- case OSMESA_BGRA:
- case OSMESA_ARGB:
- return flat_blend_rgba_z_line_write;
- default:
- return NULL;
- }
- }
-
- 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
- && ctx->Color.BlendDstA==GL_ONE_MINUS_SRC_ALPHA
- && ctx->Color.BlendEquation==GL_FUNC_ADD_EXT) {
- switch(osmesa->format) {
- case OSMESA_RGBA:
- case OSMESA_BGRA:
- case OSMESA_ARGB:
- return flat_blend_rgba_z_line;
- default:
- return NULL;
- }
- }
-
- if (ctx->RasterMask==BLEND_BIT
- && ctx->Color.BlendSrcRGB==GL_SRC_ALPHA
- && ctx->Color.BlendDstRGB==GL_ONE_MINUS_SRC_ALPHA
- && ctx->Color.BlendSrcA==GL_SRC_ALPHA
- && ctx->Color.BlendDstA==GL_ONE_MINUS_SRC_ALPHA
- && ctx->Color.BlendEquation==GL_FUNC_ADD_EXT) {
- switch(osmesa->format) {
- case OSMESA_RGBA:
- case OSMESA_BGRA:
- case OSMESA_ARGB:
- return flat_blend_rgba_line;
- default:
- return NULL;
- }
- }
-
- }
- return NULL;
+ if (osmesa->format != OSMESA_RGBA &&
+ osmesa->format != OSMESA_BGRA &&
+ osmesa->format != OSMESA_ARGB) return NULL;
+
+ if (swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ return (swrast_line_func) flat_rgba_z_line;
+ }
+
+ if (swrast->_RasterMask == 0) {
+ return (swrast_line_func) flat_rgba_line;
+ }
+
+ if (swrast->_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
+ && ctx->Color.BlendDstA==GL_ONE_MINUS_SRC_ALPHA
+ && ctx->Color.BlendEquation==GL_FUNC_ADD_EXT) {
+ return (swrast_line_func) flat_blend_rgba_z_line_write;
+ }
+
+ if (swrast->_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
+ && ctx->Color.BlendDstA==GL_ONE_MINUS_SRC_ALPHA
+ && ctx->Color.BlendEquation==GL_FUNC_ADD_EXT) {
+ return (swrast_line_func) flat_blend_rgba_z_line;
+ }
+
+ if (swrast->_RasterMask==BLEND_BIT
+ && ctx->Color.BlendSrcRGB==GL_SRC_ALPHA
+ && ctx->Color.BlendDstRGB==GL_ONE_MINUS_SRC_ALPHA
+ && ctx->Color.BlendSrcA==GL_SRC_ALPHA
+ && ctx->Color.BlendDstA==GL_ONE_MINUS_SRC_ALPHA
+ && ctx->Color.BlendEquation==GL_FUNC_ADD_EXT) {
+ return (swrast_line_func) flat_blend_rgba_line;
+ }
+
+ return (swrast_line_func) NULL;
}
/*
* Smooth-shaded, z-less triangle, RGBA color.
*/
-static void smooth_rgba_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
- GLuint v2, GLuint pv )
+static void smooth_rgba_z_triangle( GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2 )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
- GLint rshift = osmesa->rshift;
- GLint gshift = osmesa->gshift;
- GLint bshift = osmesa->bshift;
- GLint ashift = osmesa->ashift;
- (void) pv;
-
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
#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 ) \
-{ \
- GLint i, len = RIGHT-LEFT; \
- GLuint *img = PIXELADDR4(LEFT,Y); \
- for (i=0;i<len;i++,img++) { \
- GLdepth z = FixedToDepth(ffz); \
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLchan *img = PIXELADDR4(span.x, span.y); \
+ for (i = 0; i < span.end; i++, img += 4) { \
+ const GLdepth z = FixedToDepth(span.z); \
if (z < zRow[i]) { \
- *img = PACK_RGBA2( FixedToInt(ffr), FixedToInt(ffg), \
- FixedToInt(ffb), FixedToInt(ffa) ); \
+ PACK_RGBA(img, FixedToChan(span.red), \
+ FixedToChan(span.green), FixedToChan(span.blue), \
+ FixedToChan(span.alpha)); \
zRow[i] = z; \
} \
- ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; ffa += fdadx;\
- ffz += fdzdx; \
- } \
-}
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.alpha += span.alphaStep; \
+ span.z += span.zStep; \
+ }
+
#ifdef WIN32
-#include "..\tritemp.h"
+#include "..\swrast\s_tritemp.h"
#else
-#include "tritemp.h"
+#include "swrast/s_tritemp.h"
#endif
}
/*
* Flat-shaded, z-less triangle, RGBA color.
*/
-static void flat_rgba_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
- GLuint v2, GLuint pv )
+static void flat_rgba_z_triangle( GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2 )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(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]; \
- GLubyte b = VB->ColorPtr->data[pv][2]; \
- GLubyte a = VB->ColorPtr->data[pv][3]; \
- GLuint pixel = PACK_RGBA(r,g,b,a);
-
-#define INNER_LOOP( LEFT, RIGHT, Y ) \
-{ \
- GLint i, len = RIGHT-LEFT; \
- GLuint *img = PIXELADDR4(LEFT,Y); \
- for (i=0;i<len;i++,img++) { \
- GLdepth z = FixedToDepth(ffz); \
- if (z < zRow[i]) { \
- *img = pixel; \
- zRow[i] = z; \
- } \
- ffz += fdzdx; \
- } \
-}
+#define SETUP_CODE \
+ GLuint pixel; \
+ PACK_RGBA((GLchan *) &pixel, v2->color[0], v2->color[1], \
+ v2->color[2], v2->color[3]);
+
+#define RENDER_SPAN( span ) \
+ GLuint i; \
+ GLuint *img = (GLuint *) PIXELADDR4(span.x, span.y); \
+ for (i = 0; i < span.end; i++) { \
+ const GLdepth z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ img[i] = pixel; \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+
#ifdef WIN32
-#include "..\tritemp.h"
+#include "..\swrast\s_tritemp.h"
#else
-#include "tritemp.h"
+#include "swrast/s_tritemp.h"
#endif
}
/*
* Return pointer to an accelerated triangle function if possible.
*/
-static triangle_func choose_triangle_function( GLcontext *ctx )
+static swrast_tri_func
+osmesa_choose_triangle_function( GLcontext *ctx )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
-
- if ((osmesa->format==OSMESA_RGB)||(osmesa->format==OSMESA_BGR)) return NULL;
-
- if (ctx->Polygon.SmoothFlag) return NULL;
- if (ctx->Polygon.StippleFlag) return NULL;
- if (ctx->Texture.ReallyEnabled) return NULL;
-
- 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;
+ const OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (CHAN_BITS != 8) return (swrast_tri_func) NULL;
+ 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._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 &&
+ ctx->Depth.Mask == GL_TRUE &&
+ ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ if (ctx->Light.ShadeModel == GL_SMOOTH) {
+ return (swrast_tri_func) smooth_rgba_z_triangle;
}
else {
- return flat_rgba_z_triangle;
+ return (swrast_tri_func) flat_rgba_z_triangle;
}
}
- return NULL;
+ return (swrast_tri_func) NULL;
}
+/* Override for the swrast triangle-selection function. Try to use one
+ * of our internal triangle functions, otherwise fall back to the
+ * standard swrast functions.
+ */
+static void osmesa_choose_triangle( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ swrast->Triangle = osmesa_choose_triangle_function( ctx );
+ if (!swrast->Triangle)
+ _swrast_choose_triangle( ctx );
+}
+
+static void osmesa_choose_line( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ swrast->Line = osmesa_choose_line_function( ctx );
+ if (!swrast->Line)
+ _swrast_choose_line( ctx );
+}
+
+
+#define OSMESA_NEW_LINE (_NEW_LINE | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+#define OSMESA_NEW_TRIANGLE (_NEW_POLYGON | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+
+/* Extend the software rasterizer with our line and triangle
+ * functions.
+ */
+static void osmesa_register_swrast_functions( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT( ctx );
+
+ swrast->choose_line = osmesa_choose_line;
+ swrast->choose_triangle = osmesa_choose_triangle;
+
+ swrast->invalidate_line |= OSMESA_NEW_LINE;
+ swrast->invalidate_triangle |= OSMESA_NEW_TRIANGLE;
+}
+
+
static const GLubyte *get_string( GLcontext *ctx, GLenum name )
{
(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;
}
}
-static void osmesa_update_state( GLcontext *ctx )
+static void osmesa_update_state( GLcontext *ctx, GLuint new_state )
{
- OSMesaContext osmesa = (OSMesaContext) ctx;
+ OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
+ struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference( ctx );
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
ASSERT((void *) osmesa == (void *) ctx->DriverCtx);
+ /*
+ * XXX these function pointers could be initialized just once during
+ * context creation since they don't depend on any state changes.
+ */
+
ctx->Driver.GetString = get_string;
ctx->Driver.UpdateState = osmesa_update_state;
-
- ctx->Driver.SetDrawBuffer = set_draw_buffer;
- ctx->Driver.SetReadBuffer = set_read_buffer;
- ctx->Driver.Color = set_color;
- ctx->Driver.Index = set_index;
- ctx->Driver.ClearIndex = clear_index;
- ctx->Driver.ClearColor = clear_color;
- ctx->Driver.Clear = clear;
-
+ ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
ctx->Driver.GetBufferSize = buffer_size;
- ctx->Driver.PointsFunc = NULL;
- ctx->Driver.LineFunc = choose_line_function( ctx );
- ctx->Driver.TriangleFunc = choose_triangle_function( ctx );
-
+ ctx->Driver.Accum = _swrast_Accum;
+ ctx->Driver.Bitmap = _swrast_Bitmap;
+ ctx->Driver.Clear = clear;
+ 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.TexImage2D = _mesa_store_teximage2d;
+ ctx->Driver.TexImage3D = _mesa_store_teximage3d;
+ ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
+ ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
+ 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.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
+ ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
+ ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
+ ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
+ ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
+ ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+
+ swdd->SetBuffer = set_buffer;
/* RGB(A) span/pixel functions */
- if ((osmesa->format==OSMESA_RGB) || (osmesa->format==OSMESA_BGR)) {
- /* 3 bytes / pixel in frame buffer */
- ctx->Driver.WriteRGBASpan = write_rgba_span3;
- ctx->Driver.WriteRGBSpan = write_rgb_span3;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels3;
- ctx->Driver.WriteMonoRGBASpan = write_monocolor_span3;
- ctx->Driver.WriteMonoRGBAPixels = write_monocolor_pixels3;
- ctx->Driver.ReadRGBASpan = read_rgba_span3;
- ctx->Driver.ReadRGBAPixels = read_rgba_pixels3;
+ if (osmesa->format == OSMESA_RGB) {
+ swdd->WriteRGBASpan = write_rgba_span_RGB;
+ swdd->WriteRGBSpan = write_rgb_span_RGB;
+ swdd->WriteMonoRGBASpan = write_monocolor_span_RGB;
+ swdd->WriteRGBAPixels = write_rgba_pixels_RGB;
+ swdd->WriteMonoRGBAPixels = write_monocolor_pixels_RGB;
+ swdd->ReadRGBASpan = read_rgba_span3;
+ swdd->ReadRGBAPixels = read_rgba_pixels3;
+ }
+ else if (osmesa->format == OSMESA_BGR) {
+ swdd->WriteRGBASpan = write_rgba_span_BGR;
+ swdd->WriteRGBSpan = write_rgb_span_BGR;
+ swdd->WriteMonoRGBASpan = write_monocolor_span_BGR;
+ swdd->WriteRGBAPixels = write_rgba_pixels_BGR;
+ swdd->WriteMonoRGBAPixels = write_monocolor_pixels_BGR;
+ swdd->ReadRGBASpan = read_rgba_span3;
+ swdd->ReadRGBAPixels = read_rgba_pixels3;
+ }
+ else if (osmesa->format == OSMESA_RGB_565) {
+ swdd->WriteRGBASpan = write_rgba_span2;
+ swdd->WriteRGBSpan = write_rgb_span2;
+ swdd->WriteMonoRGBASpan = write_monocolor_span2;
+ swdd->WriteRGBAPixels = write_rgba_pixels2;
+ swdd->WriteMonoRGBAPixels = write_monocolor_pixels2;
+ swdd->ReadRGBASpan = read_rgba_span2;
+ swdd->ReadRGBAPixels = read_rgba_pixels2;
}
else {
- /* 4 bytes / pixel in frame buffer */
- if (osmesa->format==OSMESA_RGBA
- && RCOMP==0 && GCOMP==1 && BCOMP==2 && ACOMP==3)
- ctx->Driver.WriteRGBASpan = write_rgba_span_rgba;
- else
- ctx->Driver.WriteRGBASpan = write_rgba_span;
- ctx->Driver.WriteRGBSpan = write_rgb_span;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels;
- ctx->Driver.WriteMonoRGBASpan = write_monocolor_span;
- ctx->Driver.WriteMonoRGBAPixels = write_monocolor_pixels;
- if (osmesa->format==OSMESA_RGBA
- && RCOMP==0 && GCOMP==1 && BCOMP==2 && ACOMP==3)
- ctx->Driver.ReadRGBASpan = read_rgba_span_rgba;
- else
- ctx->Driver.ReadRGBASpan = read_rgba_span;
- ctx->Driver.ReadRGBAPixels = read_rgba_pixels;
+ /* 4 GLchan / pixel in frame buffer */
+ swdd->WriteRGBSpan = write_rgb_span;
+ swdd->WriteRGBAPixels = write_rgba_pixels;
+ swdd->WriteMonoRGBASpan = write_monocolor_span;
+ swdd->WriteMonoRGBAPixels = write_monocolor_pixels;
+ if (osmesa->format == OSMESA_RGBA &&
+ CHAN_TYPE == GL_UNSIGNED_BYTE &&
+ RCOMP==0 && GCOMP==1 && BCOMP==2 && ACOMP==3) {
+ /* special, fast case */
+ swdd->WriteRGBASpan = write_rgba_span_rgba;
+ swdd->ReadRGBASpan = read_rgba_span_rgba;
+ }
+ else {
+ swdd->WriteRGBASpan = write_rgba_span;
+ swdd->ReadRGBASpan = read_rgba_span;
+ }
+ swdd->ReadRGBAPixels = read_rgba_pixels;
}
/* CI span/pixel functions */
- ctx->Driver.WriteCI32Span = write_index32_span;
- ctx->Driver.WriteCI8Span = write_index8_span;
- ctx->Driver.WriteMonoCISpan = write_monoindex_span;
- ctx->Driver.WriteCI32Pixels = write_index_pixels;
- ctx->Driver.WriteMonoCIPixels = write_monoindex_pixels;
- ctx->Driver.ReadCI32Span = read_index_span;
- ctx->Driver.ReadCI32Pixels = read_index_pixels;
+ swdd->WriteCI32Span = write_index32_span;
+ swdd->WriteCI8Span = write_index8_span;
+ swdd->WriteMonoCISpan = write_monoindex_span;
+ swdd->WriteCI32Pixels = write_index_pixels;
+ swdd->WriteMonoCIPixels = write_monoindex_pixels;
+ swdd->ReadCI32Span = read_index_span;
+ swdd->ReadCI32Pixels = read_index_pixels;
+
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+
+ _swrast_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
}
projects / mesa.git / blobdiff