From a0c4815433ccd57322f4f7703ca35e9ccfa59250 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 8 Oct 2009 13:15:52 +0000 Subject: Added MesaLib-7.6 --- mesalib/src/mesa/main/drawpix.c | 311 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 311 insertions(+) create mode 100644 mesalib/src/mesa/main/drawpix.c (limited to 'mesalib/src/mesa/main/drawpix.c') diff --git a/mesalib/src/mesa/main/drawpix.c b/mesalib/src/mesa/main/drawpix.c new file mode 100644 index 000000000..aef658564 --- /dev/null +++ b/mesalib/src/mesa/main/drawpix.c @@ -0,0 +1,311 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 1999-2008 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. + */ + +#include "glheader.h" +#include "imports.h" +#include "bufferobj.h" +#include "context.h" +#include "drawpix.h" +#include "enums.h" +#include "feedback.h" +#include "framebuffer.h" +#include "image.h" +#include "readpix.h" +#include "state.h" + + + +/** + * If a fragment program is enabled, check that it's valid. + * \return GL_TRUE if valid, GL_FALSE otherwise + */ +static GLboolean +valid_fragment_program(GLcontext *ctx) +{ + return !(ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled); +} + + +#if _HAVE_FULL_GL + +/* + * Execute glDrawPixels + */ +void GLAPIENTRY +_mesa_DrawPixels( GLsizei width, GLsizei height, + GLenum format, GLenum type, const GLvoid *pixels ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (width < 0 || height < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" ); + return; + } + + /* We're not using the current vertex program, and the driver may install + * it's own. + */ + _mesa_set_vp_override(ctx, GL_TRUE); + + if (ctx->NewState) { + _mesa_update_state(ctx); + } + + if (!valid_fragment_program(ctx)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels (invalid fragment program)"); + goto end; + } + + if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) { + /* the error was already recorded */ + goto end; + } + + if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { + _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, + "glDrawPixels(incomplete framebuffer)" ); + goto end; + } + + if (!ctx->Current.RasterPosValid) { + goto end; /* no-op, not an error */ + } + + if (ctx->RenderMode == GL_RENDER) { + if (width > 0 && height > 0) { + /* Round, to satisfy conformance tests (matches SGI's OpenGL) */ + GLint x = IROUND(ctx->Current.RasterPos[0]); + GLint y = IROUND(ctx->Current.RasterPos[1]); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack from PBO */ + if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, + format, type, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(invalid PBO access)"); + goto end; + } + if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(PBO is mapped)"); + goto end; + } + } + + ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type, + &ctx->Unpack, pixels); + } + } + else if (ctx->RenderMode == GL_FEEDBACK) { + /* Feedback the current raster pos info */ + FLUSH_CURRENT( ctx, 0 ); + _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN ); + _mesa_feedback_vertex( ctx, + ctx->Current.RasterPos, + ctx->Current.RasterColor, + ctx->Current.RasterIndex, + ctx->Current.RasterTexCoords[0] ); + } + else { + ASSERT(ctx->RenderMode == GL_SELECT); + /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */ + } + +end: + _mesa_set_vp_override(ctx, GL_FALSE); +} + + +void GLAPIENTRY +_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height, + GLenum type ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (width < 0 || height < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)"); + return; + } + + /* Note: more detailed 'type' checking is done by the + * _mesa_source/dest_buffer_exists() calls below. That's where we + * check if the stencil buffer exists, etc. + */ + if (type != GL_COLOR && + type != GL_DEPTH && + type != GL_STENCIL && + type != GL_DEPTH_STENCIL) { + _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels(type=%s)", + _mesa_lookup_enum_by_nr(type)); + return; + } + + /* We're not using the current vertex program, and the driver may install + * it's own. + */ + _mesa_set_vp_override(ctx, GL_TRUE); + + if (ctx->NewState) { + _mesa_update_state(ctx); + } + + if (!valid_fragment_program(ctx)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glCopyPixels (invalid fragment program)"); + goto end; + } + + if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT || + ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { + _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, + "glCopyPixels(incomplete framebuffer)" ); + goto end; + } + + if (!_mesa_source_buffer_exists(ctx, type) || + !_mesa_dest_buffer_exists(ctx, type)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glCopyPixels(missing source or dest buffer)"); + goto end; + } + + if (!ctx->Current.RasterPosValid || width ==0 || height == 0) { + goto end; /* no-op, not an error */ + } + + if (ctx->RenderMode == GL_RENDER) { + /* Round to satisfy conformance tests (matches SGI's OpenGL) */ + if (width > 0 && height > 0) { + GLint destx = IROUND(ctx->Current.RasterPos[0]); + GLint desty = IROUND(ctx->Current.RasterPos[1]); + ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty, + type ); + } + } + else if (ctx->RenderMode == GL_FEEDBACK) { + FLUSH_CURRENT( ctx, 0 ); + _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN ); + _mesa_feedback_vertex( ctx, + ctx->Current.RasterPos, + ctx->Current.RasterColor, + ctx->Current.RasterIndex, + ctx->Current.RasterTexCoords[0] ); + } + else { + ASSERT(ctx->RenderMode == GL_SELECT); + /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */ + } + +end: + _mesa_set_vp_override(ctx, GL_FALSE); +} + +#endif /* _HAVE_FULL_GL */ + + + +void GLAPIENTRY +_mesa_Bitmap( GLsizei width, GLsizei height, + GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, + const GLubyte *bitmap ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (width < 0 || height < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" ); + return; + } + + if (!ctx->Current.RasterPosValid) { + return; /* do nothing */ + } + + if (ctx->NewState) { + _mesa_update_state(ctx); + } + + if (!valid_fragment_program(ctx)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBitmap (invalid fragment program)"); + return; + } + + if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { + _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, + "glBitmap(incomplete framebuffer)"); + return; + } + + if (ctx->RenderMode == GL_RENDER) { + /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */ + if (width > 0 && height > 0) { + const GLfloat epsilon = 0.0001F; + GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig); + GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack from PBO */ + if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, + GL_COLOR_INDEX, GL_BITMAP, + (GLvoid *) bitmap)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBitmap(invalid PBO access)"); + return; + } + if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBitmap(PBO is mapped)"); + return; + } + } + + ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); + } + } +#if _HAVE_FULL_GL + else if (ctx->RenderMode == GL_FEEDBACK) { + FLUSH_CURRENT(ctx, 0); + _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN ); + _mesa_feedback_vertex( ctx, + ctx->Current.RasterPos, + ctx->Current.RasterColor, + ctx->Current.RasterIndex, + ctx->Current.RasterTexCoords[0] ); + } + else { + ASSERT(ctx->RenderMode == GL_SELECT); + /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */ + } +#endif + + /* update raster position */ + ctx->Current.RasterPos[0] += xmove; + ctx->Current.RasterPos[1] += ymove; +} -- cgit v1.2.3