+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 3.0
- * Copyright (C) 1995-1998 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <allegro.h>
-#include "main/buffers.h"
-#include "main/context.h"
-#include "main/imports.h"
-#include "main/matrix.h"
-#include "main/mtypes.h"
-#include "amesa.h"
-
-
-struct amesa_visual
- {
- GLvisual *GLVisual; /* inherit from GLvisual */
- GLboolean DBFlag; /* double buffered? */
- GLuint Depth; /* bits per pixel ( >= 15 ) */
- };
-
-
-struct amesa_buffer
- {
- GLframebuffer *GLBuffer; /* inherit from GLframebuffer */
- GLuint Width, Height;
- BITMAP *Screen;
- BITMAP *Background;
- BITMAP *Active;
- };
-
-
-struct amesa_context
- {
- GLcontext *GLContext; /* inherit from GLcontext */
- AMesaVisual Visual;
- AMesaBuffer Buffer;
- GLuint ClearColor;
- GLuint CurrentColor;
- };
-
-
-static void setup_dd_pointers(GLcontext *ctx);
-
-
-/**********************************************************************/
-/***** drawing functions *****/
-/**********************************************************************/
-
-#define FLIP(context, y) (context->Buffer->Height - (y) - 1)
-
-#include "allegro/generic.h"
-#include "allegro/direct.h"
-
-
-/**********************************************************************/
-/***** 15-bit accelerated drawing funcs *****/
-/**********************************************************************/
-
-IMPLEMENT_WRITE_RGBA_SPAN(15, unsigned short)
-IMPLEMENT_WRITE_RGB_SPAN(15, unsigned short)
-IMPLEMENT_WRITE_MONO_RGBA_SPAN(15, unsigned short)
-IMPLEMENT_READ_RGBA_SPAN(15, unsigned short)
-IMPLEMENT_WRITE_RGBA_PIXELS(15, unsigned short)
-IMPLEMENT_WRITE_MONO_RGBA_PIXELS(15, unsigned short)
-IMPLEMENT_READ_RGBA_PIXELS(15, unsigned short)
-
-
-/**********************************************************************/
-/***** 16-bit accelerated drawing funcs *****/
-/**********************************************************************/
-
-IMPLEMENT_WRITE_RGBA_SPAN(16, unsigned short)
-IMPLEMENT_WRITE_RGB_SPAN(16, unsigned short)
-IMPLEMENT_WRITE_MONO_RGBA_SPAN(16, unsigned short)
-IMPLEMENT_READ_RGBA_SPAN(16, unsigned short)
-IMPLEMENT_WRITE_RGBA_PIXELS(16, unsigned short)
-IMPLEMENT_WRITE_MONO_RGBA_PIXELS(16, unsigned short)
-IMPLEMENT_READ_RGBA_PIXELS(16, unsigned short)
-
-
-/**********************************************************************/
-/***** 32-bit accelerated drawing funcs *****/
-/**********************************************************************/
-
-IMPLEMENT_WRITE_RGBA_SPAN(32, unsigned long)
-IMPLEMENT_WRITE_RGB_SPAN(32, unsigned long)
-IMPLEMENT_WRITE_MONO_RGBA_SPAN(32, unsigned long)
-IMPLEMENT_READ_RGBA_SPAN(32, unsigned long)
-IMPLEMENT_WRITE_RGBA_PIXELS(32, unsigned long)
-IMPLEMENT_WRITE_MONO_RGBA_PIXELS(32, unsigned long)
-IMPLEMENT_READ_RGBA_PIXELS(32, unsigned long)
-
-
-/**********************************************************************/
-/***** Miscellaneous device driver funcs *****/
-/**********************************************************************/
-
-static GLboolean set_buffer(GLcontext *ctx, GLframebuffer *buffer, GLuint bit)
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- GLboolean ok = GL_TRUE;
-
- if (bit == DD_FRONT_LEFT_BIT)
- context->Buffer->Active = context->Buffer->Screen;
-
- else if (bit == DD_BACK_LEFT)
- {
- if (context->Buffer->Background)
- context->Buffer->Active = context->Buffer->Background;
- else
- ok = GL_FALSE;
- }
-
- else
- ok = GL_FALSE;
-
- return ok;
- }
-
-
-static void get_buffer_size(GLcontext *ctx, GLuint *width, GLuint *height)
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
-
- *width = context->Buffer->Width;
- *height = context->Buffer->Height;
- }
-
-
-/**
- * We only implement this function as a mechanism to check if the
- * framebuffer size has changed (and update corresponding state).
- */
-static void viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
- /* poll for window size change and realloc software Z/stencil/etc if needed */
- GLuint newWidth, newHeight;
- GLframebuffer *buffer = ctx->WinSysDrawBuffer;
- get_buffer_size( &newWidth, &newHeight );
- if (buffer->Width != newWidth || buffer->Height != newHeight) {
- _mesa_resize_framebuffer(ctx, buffer, newWidth, newHeight );
- }
-
-}
-
-
-/**********************************************************************/
-/**********************************************************************/
-
-static void setup_dd_pointers(GLcontext *ctx)
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
-
- /* Initialize all the pointers in the driver struct. Do this whenever */
- /* a new context is made current or we change buffers via set_buffer! */
-
- ctx->Driver.UpdateState = setup_dd_pointers;
- ctx->Driver.SetBuffer = set_buffer;
- ctx->Driver.GetBufferSize = get_buffer_size;
- ctx->Driver.Viewport = viewport;
-
- ctx->Driver.Color = set_color_generic;
- ctx->Driver.ClearColor = clear_color_generic;
- ctx->Driver.Clear = clear_generic;
- ctx->Driver.WriteRGBASpan = write_rgba_span_generic;
- ctx->Driver.WriteRGBSpan = write_rgb_span_generic;
- ctx->Driver.WriteMonoRGBASpan = write_mono_rgba_span_generic;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels_generic;
- ctx->Driver.WriteMonoRGBAPixels = write_mono_rgba_pixels_generic;
- ctx->Driver.ReadRGBASpan = read_rgba_span_generic;
- ctx->Driver.ReadRGBAPixels = read_rgba_pixels_generic;
-
- if (context->Buffer->Active != screen)
- {
- switch (context->Visual->Depth)
- {
- case 15:
- ctx->Driver.WriteRGBASpan = write_rgba_span_15;
- ctx->Driver.WriteRGBSpan = write_rgb_span_15;
- ctx->Driver.WriteMonoRGBASpan = write_mono_rgba_span_15;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels_15;
- ctx->Driver.WriteMonoRGBAPixels = write_mono_rgba_pixels_15;
- ctx->Driver.ReadRGBASpan = read_rgba_span_15;
- ctx->Driver.ReadRGBAPixels = read_rgba_pixels_15;
- break;
-
- case 16:
- ctx->Driver.WriteRGBASpan = write_rgba_span_16;
- ctx->Driver.WriteRGBSpan = write_rgb_span_16;
- ctx->Driver.WriteMonoRGBASpan = write_mono_rgba_span_16;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels_16;
- ctx->Driver.WriteMonoRGBAPixels = write_mono_rgba_pixels_16;
- ctx->Driver.ReadRGBASpan = read_rgba_span_16;
- ctx->Driver.ReadRGBAPixels = read_rgba_pixels_16;
- break;
-
- case 32:
- ctx->Driver.WriteRGBASpan = write_rgba_span_32;
- ctx->Driver.WriteRGBSpan = write_rgb_span_32;
- ctx->Driver.WriteMonoRGBASpan = write_mono_rgba_span_32;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels_32;
- ctx->Driver.WriteMonoRGBAPixels = write_mono_rgba_pixels_32;
- ctx->Driver.ReadRGBASpan = read_rgba_span_32;
- ctx->Driver.ReadRGBAPixels = read_rgba_pixels_32;
- break;
- }
- }
- }
-
-
-/**********************************************************************/
-/***** AMesa Public API Functions *****/
-/**********************************************************************/
-
-
-AMesaVisual AMesaCreateVisual(GLboolean dbFlag, GLint depth,
- GLint depthSize, GLint stencilSize, GLint accumSize)
- {
- AMesaVisual visual;
- GLbyte redBits, greenBits, blueBits;
-
- visual = (AMesaVisual)calloc(1, sizeof(struct amesa_visual));
- if (!visual)
- return NULL;
-
- switch (depth)
- {
- case 15:
- redBits = 5;
- greenBits = 5;
- blueBits = 5;
- break;
-
- case 16:
- redBits = 5;
- greenBits = 6;
- blueBits = 5;
- break;
-
- case 24: case 32:
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- break;
-
- default:
- free(visual);
- return NULL;
- }
-
- visual->DBFlag = dbFlag;
- visual->Depth = depth;
- visual->GLVisual = _mesa_create_visual(GL_TRUE, /* rgb mode */
- dbFlag, /* db_flag */
- GL_FALSE, /* stereo */
- redBits, greenBits, blueBits, 8,
- 0, /* index bits */
- depthSize, /* depth bits */
- stencilSize,/* stencil bits */
- accumSize, /* accum bits */
- accumSize, /* accum bits */
- accumSize, /* accum bits */
- accumSize, /* accum bits */
- 1 );
- if (!visual->GLVisual)
- {
- free(visual);
- return NULL;
- }
-
- return visual;
- }
-
-
-void AMesaDestroyVisual(AMesaVisual visual)
- {
- _mesa_destroy_visual(visual->GLVisual);
- free(visual);
- }
-
-
-AMesaBuffer AMesaCreateBuffer(AMesaVisual visual,
- GLint width, GLint height)
- {
- AMesaBuffer buffer;
-
- buffer = (AMesaBuffer)calloc(1, sizeof(struct amesa_buffer));
- if (!buffer)
- return NULL;
-
- buffer->Screen = NULL;
- buffer->Background = NULL;
- buffer->Active = NULL;
- buffer->Width = width;
- buffer->Height = height;
-
- if (visual->DBFlag)
- {
- buffer->Background = create_bitmap_ex(visual->Depth, width, height);
- if (!buffer->Background)
- {
- free(buffer);
- return NULL;
- }
- }
-
- buffer->GLBuffer = _mesa_create_framebuffer(visual->GLVisual);
- if (!buffer->GLBuffer)
- {
- if (buffer->Background) destroy_bitmap(buffer->Background);
- free(buffer);
- return NULL;
- }
-
- return buffer;
- }
-
-
-void AMesaDestroyBuffer(AMesaBuffer buffer)
-{
- if (buffer->Screen) destroy_bitmap(buffer->Screen);
- if (buffer->Background) destroy_bitmap(buffer->Background);
- _mesa_reference_framebuffer(&buffer->GLBuffer, NULL);
- free(buffer);
-}
-
-
-AMesaContext AMesaCreateContext(AMesaVisual visual,
- AMesaContext share)
-{
- AMesaContext context;
- GLboolean direct = GL_FALSE;
-
- context = (AMesaContext)calloc(1, sizeof(struct amesa_context));
- if (!context)
- return NULL;
-
- context->Visual = visual;
- context->Buffer = NULL;
- context->ClearColor = 0;
- context->CurrentColor = 0;
- context->GLContext = _mesa_create_context(visual->GLVisual,
- share ? share->GLContext : NULL,
- (void *) context, GL_FALSE );
- if (!context->GLContext)
- {
- free(context);
- return NULL;
- }
-
- return context;
-}
-
-
-void AMesaDestroyContext(AMesaContext context)
-{
- _mesa_destroy_context(context->GLContext);
- free(context);
-}
-
-
-GLboolean AMesaMakeCurrent(AMesaContext context, AMesaBuffer buffer)
-{
- if (context && buffer) {
- set_color_depth(context->Visual->Depth);
- if (set_gfx_mode(GFX_AUTODETECT, buffer->Width, buffer->Height, 0, 0) != 0)
- return GL_FALSE;
-
- context->Buffer = buffer;
- buffer->Screen = screen;
- buffer->Active = buffer->Background ? buffer->Background : screen;
-
- setup_dd_pointers(context->GLContext);
- _mesa_make_current(context->GLContext, buffer->GLBuffer);
- }
- else {
- /* XXX I don't think you want to destroy anything here! */
- destroy_bitmap(context->Buffer->Screen);
- context->Buffer->Screen = NULL;
- context->Buffer->Active = NULL;
- context->Buffer = NULL;
- _mesa_make_current(NULL, NULL);
- }
-
- return GL_TRUE;
-}
-
-
-void AMesaSwapBuffers(AMesaBuffer buffer)
-{
- if (buffer->Background) {
- blit(buffer->Background, buffer->Screen,
- 0, 0, 0, 0,
- buffer->Width, buffer->Height);
- }
-}
+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 3.3
- *
- * Copyright (C) 1999-2000 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
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/* Allegro (DJGPP) driver by Bernhard Tschirren (bernie-t@geocities.com) */
-
-
-#ifndef AMESA_H
-#define AMESA_H
-
-
-#define AMESA_MAJOR_VERSION 3
-#define AMESA_MINOR_VERSION 3
-
-
-typedef struct amesa_visual *AMesaVisual;
-typedef struct amesa_buffer *AMesaBuffer;
-typedef struct amesa_context *AMesaContext;
-
-
-extern AMesaVisual AMesaCreateVisual(GLboolean dbFlag, GLint depth,
- GLint depthSize,
- GLint stencilSize,
- GLint accumSize);
-
-extern void AMesaDestroyVisual(AMesaVisual visual);
-
-extern AMesaBuffer AMesaCreateBuffer(AMesaVisual visual,
- GLint width, GLint height);
-
-extern void AMesaDestroyBuffer(AMesaBuffer buffer);
-
-
-extern AMesaContext AMesaCreateContext(AMesaVisual visual,
- AMesaContext sharelist);
-
-extern void AMesaDestroyContext(AMesaContext context);
-
-extern GLboolean AMesaMakeCurrent(AMesaContext context, AMesaBuffer buffer);
-
-extern void AMesaSwapBuffers(AMesaBuffer buffer);
-
-
-#endif /* AMESA_H */
+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 3.0
- * Copyright (C) 1995-1998 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-#define DESTINATION(BMP, X, Y, TYPE) \
- ({ \
- BITMAP *_bmp = BMP; \
- \
- (TYPE*)(_bmp->line[_bmp->h - (Y) - 1]) + (X); \
- })
-
-
-#define IMPLEMENT_WRITE_RGBA_SPAN(DEPTH, TYPE) \
-static void write_rgba_span_##DEPTH (const GLcontext *ctx, \
- GLuint n, GLint x, GLint y, \
- const GLubyte rgba[][4], \
- const GLubyte mask[]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- TYPE *d = DESTINATION(context->Buffer->Active, x, y, TYPE); \
- \
- if (mask) \
- { \
- while (n--) \
- { \
- if (mask[0]) d[0] = makecol##DEPTH(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]); \
- d++; rgba++; mask++; \
- } \
- } \
- else \
- { \
- while (n--) \
- { \
- d[0] = makecol##DEPTH(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]); \
- d++; rgba++; \
- } \
- } \
- }
-
-
-#define IMPLEMENT_WRITE_RGB_SPAN(DEPTH, TYPE) \
-static void write_rgb_span_##DEPTH (const GLcontext *ctx, \
- GLuint n, GLint x, GLint y, \
- const GLubyte rgb[][3], \
- const GLubyte mask[]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- TYPE *d = DESTINATION(context->Buffer->Active, x, y, TYPE); \
- \
- if (mask) \
- { \
- while (n--) \
- { \
- if (mask[0]) d[0] = makecol##DEPTH(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]); \
- d++; rgb++; mask++; \
- } \
- } \
- else \
- { \
- while (n--) \
- { \
- d[0] = makecol##DEPTH(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]); \
- d++; rgb++; \
- } \
- } \
- }
-
-
-#define IMPLEMENT_WRITE_MONO_RGBA_SPAN(DEPTH, TYPE) \
-static void write_mono_rgba_span_##DEPTH (const GLcontext *ctx, \
- GLuint n, GLint x, GLint y, \
- const GLubyte mask[]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- TYPE color = context->CurrentColor; \
- TYPE *d = DESTINATION(context->Buffer->Active, x, y, TYPE); \
- \
- while (n--) \
- { \
- if (mask[0]) d[0] = color; \
- d++; mask++; \
- } \
- }
-
-
-#define IMPLEMENT_READ_RGBA_SPAN(DEPTH, TYPE) \
-static void read_rgba_span_##DEPTH (const GLcontext *ctx, \
- GLuint n, GLint x, GLint y, \
- GLubyte rgba[][4]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- BITMAP *bmp = context->Buffer->Active; \
- TYPE *d = DESTINATION(bmp, x, y, TYPE); \
- \
- while (n--) \
- { \
- rgba[0][RCOMP] = getr##DEPTH(d[0]); \
- rgba[0][GCOMP] = getg##DEPTH(d[0]); \
- rgba[0][BCOMP] = getb##DEPTH(d[0]); \
- rgba[0][ACOMP] = 255; \
- \
- d++; rgba++; \
- } \
- }
-
-
-#define IMPLEMENT_WRITE_RGBA_PIXELS(DEPTH, TYPE) \
-static void write_rgba_pixels_##DEPTH (const GLcontext *ctx, \
- GLuint n, \
- const GLint x[], \
- const GLint y[], \
- const GLubyte rgba[][4], \
- const GLubyte mask[]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- BITMAP *bmp = context->Buffer->Active; \
- \
- while (n--) \
- { \
- if (mask[0]) *DESTINATION(bmp, x[0], y[0], TYPE) = makecol##DEPTH(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]); \
- rgba++; x++; y++; mask++; \
- } \
- }
-
-
-
-#define IMPLEMENT_WRITE_MONO_RGBA_PIXELS(DEPTH, TYPE) \
-static void write_mono_rgba_pixels_##DEPTH (const GLcontext *ctx, \
- GLuint n, \
- const GLint x[], \
- const GLint y[], \
- const GLubyte mask[]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- TYPE color = context->CurrentColor; \
- BITMAP *bmp = context->Buffer->Active; \
- \
- while (n--) \
- { \
- if (mask[0]) *DESTINATION(bmp, x[0], y[0], TYPE) = color; \
- x++; y++; mask++; \
- } \
- }
-
-
-#define IMPLEMENT_READ_RGBA_PIXELS(DEPTH, TYPE) \
-static void read_rgba_pixels_##DEPTH (const GLcontext *ctx, \
- GLuint n, \
- const GLint x[], \
- const GLint y[], \
- GLubyte rgba[][4], \
- const GLubyte mask[]) \
- { \
- AMesaContext context = (AMesaContext)(ctx->DriverCtx); \
- BITMAP *bmp = context->Buffer->Active; \
- \
- while (n--) \
- { \
- if (mask[0]) \
- { \
- int color = *DESTINATION(bmp, x[0], y[0], TYPE); \
- \
- rgba[0][RCOMP] = getr##DEPTH(color); \
- rgba[0][GCOMP] = getg##DEPTH(color); \
- rgba[0][BCOMP] = getb##DEPTH(color); \
- rgba[0][ACOMP] = 255; \
- } \
- \
- x++; y++; rgba++; mask++; \
- } \
- }
-
+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 3.0
- * Copyright (C) 1995-1998 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-static void clear_color_generic(GLcontext *ctx, const GLfloat color[4])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- GLubyte r, g, b;
- CLAMPED_FLOAT_TO_UBYTE(r, color[0]);
- CLAMPED_FLOAT_TO_UBYTE(g, color[1]);
- CLAMPED_FLOAT_TO_UBYTE(b, color[2]);
- context->ClearColor = makecol(r, g, b);
- }
-
-
-static void set_color_generic(GLcontext *ctx,
- GLubyte red, GLubyte green,
- GLubyte blue, GLubyte alpha)
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
-
- context->CurrentColor = makecol(red, green, blue);
- }
-
-
-static GLbitfield clear_generic(GLcontext *ctx,
- GLbitfield mask, GLboolean all,
- GLint x, GLint y,
- GLint width, GLint height)
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
-
- if (mask & GL_COLOR_BUFFER_BIT)
- {
- if (all)
- clear_to_color(context->Buffer->Active, context->ClearColor);
- else
- rect(context->Buffer->Active,
- x, y, x+width-1, y+height-1,
- context->ClearColor);
- }
-
- return mask & (~GL_COLOR_BUFFER_BIT);
- }
-
-
-static void write_rgba_span_generic(const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4],
- const GLubyte mask[])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
-
- y = FLIP(context, y);
-
- if (mask)
- {
- while (n--)
- {
- if (mask[0]) putpixel(bmp, x, y, makecol(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]));
- x++; mask++; rgba++;
- }
- }
- else
- {
- while (n--)
- {
- putpixel(bmp, x, y, makecol(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]));
- x++; rgba++;
- }
- }
- }
-
-
-static void write_rgb_span_generic(const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3],
- const GLubyte mask[])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
-
- y = FLIP(context, y);
-
- if (mask)
- {
- while(n--)
- {
- if (mask[0]) putpixel(bmp, x, y, makecol(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]));
- x++; mask++; rgb++;
- }
- }
- else
- {
- while (n--)
- {
- putpixel(bmp, x, y, makecol(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]));
- x++; rgb++;
- }
- }
- }
-
-
-static void write_mono_rgba_span_generic(const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
- int color = context->CurrentColor;
-
- y = FLIP(context, y);
-
- if (mask)
- {
- while(n--)
- {
- if (mask[0]) putpixel(bmp, x, y, color);
- x++; mask++;
- }
- }
- else
- {
- while(n--)
- {
- putpixel(bmp, x, y, color);
- x++;
- }
- }
- }
-
-
-static void read_rgba_span_generic(const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- GLubyte rgba[][4])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
-
- y = FLIP(context, y);
-
- while (n--)
- {
- int color = getpixel(bmp, x, y);
-
- rgba[0][RCOMP] = getr(color);
- rgba[0][GCOMP] = getg(color);
- rgba[0][BCOMP] = getb(color);
- rgba[0][ACOMP] = 255;
-
- x++; rgba++;
- }
- }
-
-
-static void write_rgba_pixels_generic(const GLcontext *ctx,
- GLuint n,
- const GLint x[],
- const GLint y[],
- const GLubyte rgba[][4],
- const GLubyte mask[])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
-
- while (n--)
- {
- if (mask[0]) putpixel(bmp, x[0], FLIP(context, y[0]), makecol(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]));
- x++; y++; mask++;
- }
- }
-
-
-static void write_mono_rgba_pixels_generic(const GLcontext *ctx,
- GLuint n,
- const GLint x[],
- const GLint y[],
- const GLubyte mask[])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
- int color = context->CurrentColor;
-
- while (n--)
- {
- if (mask[0]) putpixel(bmp, x[0], FLIP(context, y[0]), color);
- x++; y++; mask++;
- }
- }
-
-
-static void read_rgba_pixels_generic(const GLcontext *ctx,
- GLuint n,
- const GLint x[],
- const GLint y[],
- GLubyte rgba[][4],
- const GLubyte mask[])
- {
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);
- BITMAP *bmp = context->Buffer->Active;
-
- while (n--)
- {
- if (mask[0])
- {
- int color = getpixel(bmp, x[0], FLIP(context, y[0]));
-
- rgba[0][RCOMP] = getr(color);
- rgba[0][GCOMP] = getg(color);
- rgba[0][BCOMP] = getb(color);
- rgba[0][ACOMP] = 255;
- }
-
- x++; y++; mask++; rgba++;
- }
- }
-
projects / mesa.git / commitdiff