diff options
Diffstat (limited to 'src/mesa/drivers/allegro/amesa.c')
| -rw-r--r-- | src/mesa/drivers/allegro/amesa.c | 824 |
1 files changed, 412 insertions, 412 deletions
diff --git a/src/mesa/drivers/allegro/amesa.c b/src/mesa/drivers/allegro/amesa.c index 518211ccf4..c12d42148b 100644 --- a/src/mesa/drivers/allegro/amesa.c +++ b/src/mesa/drivers/allegro/amesa.c @@ -1,414 +1,414 @@ -/*
- * 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 "buffers.h"
-#include "context.h"
-#include "imports.h"
-#include "matrix.h"
+/* + * 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 "buffers.h" +#include "context.h" +#include "imports.h" +#include "matrix.h" #include "mtypes.h" -#include "GL/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_unreference_framebuffer(&buffer->GLBuffer);
- 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 {
+#include "GL/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_unreference_framebuffer(&buffer->GLBuffer); + 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);
- }
-}
+ 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); + } +} |