-/*\r
- * Mesa 3-D graphics library\r
- * Version: 3.0\r
- * Copyright (C) 1995-1998 Brian Paul\r
- *\r
- * This library is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU Library General Public\r
- * License as published by the Free Software Foundation; either\r
- * version 2 of the License, or (at your option) any later version.\r
- *\r
- * This library is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
- * Library General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU Library General Public\r
- * License along with this library; if not, write to the Free\r
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\r
- */\r
-\r
-static void clear_color_generic(GLcontext *ctx, const GLfloat color[4])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- GLubyte r, g, b;\r
- CLAMPED_FLOAT_TO_UBYTE(r, color[0]);\r
- CLAMPED_FLOAT_TO_UBYTE(g, color[1]);\r
- CLAMPED_FLOAT_TO_UBYTE(b, color[2]);\r
- context->ClearColor = makecol(r, g, b);\r
- }\r
-\r
-\r
-static void set_color_generic(GLcontext *ctx,\r
- GLubyte red, GLubyte green,\r
- GLubyte blue, GLubyte alpha)\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
-\r
- context->CurrentColor = makecol(red, green, blue);\r
- }\r
-\r
-\r
-static GLbitfield clear_generic(GLcontext *ctx,\r
- GLbitfield mask, GLboolean all,\r
- GLint x, GLint y,\r
- GLint width, GLint height)\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
-\r
- if (mask & GL_COLOR_BUFFER_BIT)\r
- {\r
- if (all)\r
- clear_to_color(context->Buffer->Active, context->ClearColor);\r
- else\r
- rect(context->Buffer->Active,\r
- x, y, x+width-1, y+height-1,\r
- context->ClearColor);\r
- }\r
-\r
- return mask & (~GL_COLOR_BUFFER_BIT);\r
- }\r
-\r
-\r
-static void write_rgba_span_generic(const GLcontext *ctx,\r
- GLuint n, GLint x, GLint y,\r
- const GLubyte rgba[][4],\r
- const GLubyte mask[])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
-\r
- y = FLIP(context, y);\r
-\r
- if (mask)\r
- {\r
- while (n--)\r
- {\r
- if (mask[0]) putpixel(bmp, x, y, makecol(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]));\r
- x++; mask++; rgba++;\r
- }\r
- }\r
- else\r
- {\r
- while (n--)\r
- {\r
- putpixel(bmp, x, y, makecol(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]));\r
- x++; rgba++;\r
- }\r
- }\r
- }\r
-\r
-\r
-static void write_rgb_span_generic(const GLcontext *ctx,\r
- GLuint n, GLint x, GLint y,\r
- const GLubyte rgb[][3],\r
- const GLubyte mask[])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
-\r
- y = FLIP(context, y);\r
-\r
- if (mask)\r
- {\r
- while(n--)\r
- {\r
- if (mask[0]) putpixel(bmp, x, y, makecol(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]));\r
- x++; mask++; rgb++;\r
- }\r
- }\r
- else\r
- {\r
- while (n--)\r
- {\r
- putpixel(bmp, x, y, makecol(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]));\r
- x++; rgb++;\r
- }\r
- }\r
- }\r
-\r
-\r
-static void write_mono_rgba_span_generic(const GLcontext *ctx,\r
- GLuint n, GLint x, GLint y,\r
- const GLubyte mask[])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
- int color = context->CurrentColor;\r
-\r
- y = FLIP(context, y);\r
-\r
- if (mask)\r
- {\r
- while(n--)\r
- {\r
- if (mask[0]) putpixel(bmp, x, y, color);\r
- x++; mask++;\r
- }\r
- }\r
- else\r
- {\r
- while(n--)\r
- {\r
- putpixel(bmp, x, y, color);\r
- x++;\r
- }\r
- }\r
- }\r
-\r
-\r
-static void read_rgba_span_generic(const GLcontext *ctx,\r
- GLuint n, GLint x, GLint y,\r
- GLubyte rgba[][4])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
-\r
- y = FLIP(context, y);\r
-\r
- while (n--)\r
- {\r
- int color = getpixel(bmp, x, y);\r
-\r
- rgba[0][RCOMP] = getr(color);\r
- rgba[0][GCOMP] = getg(color);\r
- rgba[0][BCOMP] = getb(color);\r
- rgba[0][ACOMP] = 255;\r
-\r
- x++; rgba++;\r
- }\r
- }\r
-\r
-\r
-static void write_rgba_pixels_generic(const GLcontext *ctx,\r
- GLuint n,\r
- const GLint x[],\r
- const GLint y[],\r
- const GLubyte rgba[][4],\r
- const GLubyte mask[])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
-\r
- while (n--)\r
- {\r
- if (mask[0]) putpixel(bmp, x[0], FLIP(context, y[0]), makecol(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]));\r
- x++; y++; mask++;\r
- }\r
- }\r
-\r
-\r
-static void write_mono_rgba_pixels_generic(const GLcontext *ctx,\r
- GLuint n,\r
- const GLint x[],\r
- const GLint y[],\r
- const GLubyte mask[])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
- int color = context->CurrentColor;\r
-\r
- while (n--)\r
- {\r
- if (mask[0]) putpixel(bmp, x[0], FLIP(context, y[0]), color);\r
- x++; y++; mask++;\r
- }\r
- }\r
-\r
-\r
-static void read_rgba_pixels_generic(const GLcontext *ctx,\r
- GLuint n,\r
- const GLint x[],\r
- const GLint y[],\r
- GLubyte rgba[][4],\r
- const GLubyte mask[])\r
- {\r
- AMesaContext context = (AMesaContext)(ctx->DriverCtx);\r
- BITMAP *bmp = context->Buffer->Active;\r
-\r
- while (n--)\r
- {\r
- if (mask[0])\r
- {\r
- int color = getpixel(bmp, x[0], FLIP(context, y[0]));\r
-\r
- rgba[0][RCOMP] = getr(color);\r
- rgba[0][GCOMP] = getg(color);\r
- rgba[0][BCOMP] = getb(color);\r
- rgba[0][ACOMP] = 255;\r
- }\r
-\r
- x++; y++; mask++; rgba++;\r
- }\r
- }\r
-\r
+/*
+ * 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 / blobdiff