From afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1c Mon Sep 17 00:00:00 2001 From: jtg Date: Thu, 19 Aug 1999 00:55:39 +0000 Subject: Initial revision --- src/mesa/drivers/allegro/amesa.c | 395 +++++++++++++++++++++++++++++++++++++ src/mesa/drivers/allegro/direct.h | 189 ++++++++++++++++++ src/mesa/drivers/allegro/generic.h | 233 ++++++++++++++++++++++ 3 files changed, 817 insertions(+) create mode 100644 src/mesa/drivers/allegro/amesa.c create mode 100644 src/mesa/drivers/allegro/direct.h create mode 100644 src/mesa/drivers/allegro/generic.h (limited to 'src/mesa/drivers/allegro') diff --git a/src/mesa/drivers/allegro/amesa.c b/src/mesa/drivers/allegro/amesa.c new file mode 100644 index 0000000000..6e0f21d804 --- /dev/null +++ b/src/mesa/drivers/allegro/amesa.c @@ -0,0 +1,395 @@ +/* + * 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 +#include +#include +#include "context.h" +#include "matrix.h" +#include "types.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, GLenum mode) + { + AMesaContext context = (AMesaContext)(ctx->DriverCtx); + GLboolean ok = GL_TRUE; + + if (mode == GL_FRONT_LEFT) + context->Buffer->Active = context->Buffer->Screen; + + else if (mode == GL_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; + } + + +/**********************************************************************/ +/**********************************************************************/ + +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.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 = gl_create_visual(GL_TRUE, /* rgb mode */ + GL_TRUE, /* software alpha */ + dbFlag, /* db_flag */ + GL_FALSE, /* stereo */ + depthSize, /* depth bits */ + stencilSize,/* stencil bits */ + accumSize, /* accum bits */ + 0, /* index bits */ + redBits, greenBits, blueBits, 0); + if (!visual->GLVisual) + { + free(visual); + return NULL; + } + + return visual; + } + + +void AMesaDestroyVisual(AMesaVisual visual) + { + gl_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 = gl_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); + gl_destroy_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 = gl_create_context(visual->GLVisual, + share ? share->GLContext : NULL, + (void*)context, + direct); + if (!context->GLContext) + { + free(context); + return NULL; + } + + return context; + } + + +void AMesaDestroyContext(AMesaContext context) + { + gl_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); + gl_make_current(context->GLContext, buffer->GLBuffer); + gl_Viewport(context->GLContext, 0, 0, buffer->Width, buffer->Height); + } + else + { + destroy_bitmap(context->Buffer->Screen); + context->Buffer->Screen = NULL; + context->Buffer->Active = NULL; + context->Buffer = NULL; + gl_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); + } + } diff --git a/src/mesa/drivers/allegro/direct.h b/src/mesa/drivers/allegro/direct.h new file mode 100644 index 0000000000..3998fc19d7 --- /dev/null +++ b/src/mesa/drivers/allegro/direct.h @@ -0,0 +1,189 @@ +/* + * 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++; \ + } \ + } + diff --git a/src/mesa/drivers/allegro/generic.h b/src/mesa/drivers/allegro/generic.h new file mode 100644 index 0000000000..898a055d62 --- /dev/null +++ b/src/mesa/drivers/allegro/generic.h @@ -0,0 +1,233 @@ +/* + * 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, + GLubyte red, GLubyte green, + GLubyte blue, GLubyte alpha) + { + AMesaContext context = (AMesaContext)(ctx->DriverCtx); + + context->ClearColor = makecol(red, green, blue); + } + + +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++; + } + } + -- cgit v1.2.3