/** * Called via ctx->Driver.DrawPixels() */ static void st_DrawPixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels) { struct st_fragment_program *stfp; struct st_vertex_program *stvp; struct st_context *st = ctx->st; struct pipe_surface *ps; const GLfloat *color; if (format == GL_STENCIL_INDEX || format == GL_DEPTH_STENCIL) { draw_stencil_pixels(ctx, x, y, width, height, format, type, unpack, pixels); return; } _mesa_set_vp_override( ctx, TRUE ); _mesa_update_state( ctx ); st_validate_state(st); if (format == GL_DEPTH_COMPONENT) { ps = st->state.framebuffer.zsbuf; stfp = make_fragment_shader_z(ctx->st); stvp = st_make_passthrough_vertex_shader(ctx->st, GL_TRUE); color = ctx->Current.RasterColor; } else { ps = st->state.framebuffer.cbufs[0]; stfp = combined_drawpix_fragment_program(ctx); stvp = st_make_passthrough_vertex_shader(ctx->st, GL_FALSE); color = NULL; } /* draw with textured quad */ { struct pipe_texture *pt = make_texture(ctx->st, width, height, format, type, unpack, pixels); if (pt) { draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2], width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, pt, stvp, stfp, color, GL_FALSE); pipe_texture_reference(&pt, NULL); } } _mesa_set_vp_override( ctx, FALSE ); }
static void draw_texture(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height) { if (!ctx->Extensions.OES_draw_texture) { _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawTex(unsupported)"); return; } if (width <= 0.0f || height <= 0.0f) { _mesa_error(ctx, GL_INVALID_VALUE, "glDrawTex(width or height <= 0)"); return; } _mesa_set_vp_override(ctx, GL_TRUE); if (ctx->NewState) _mesa_update_state(ctx); ASSERT(ctx->Driver.DrawTex); ctx->Driver.DrawTex(ctx, x, y, z, width, height); _mesa_set_vp_override(ctx, GL_FALSE); }
/* * Execute glDrawPixels */ static void GLAPIENTRY _mesa_DrawPixels( GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels ) { GLenum err; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (MESA_VERBOSE & VERBOSE_API) _mesa_debug(ctx, "glDrawPixels(%d, %d, %s, %s, %p) // to %s at %d, %d\n", width, height, _mesa_lookup_enum_by_nr(format), _mesa_lookup_enum_by_nr(type), pixels, _mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]), IROUND(ctx->Current.RasterPos[0]), IROUND(ctx->Current.RasterPos[1])); 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 * its own. Note: this may dirty some state. */ _mesa_set_vp_override(ctx, GL_TRUE); /* Note: this call does state validation */ if (!_mesa_valid_to_render(ctx, "glDrawPixels")) { goto end; /* the error code was recorded */ } /* GL 3.0 introduced a new restriction on glDrawPixels() over what was in * GL_EXT_texture_integer. From section 3.7.4 ("Rasterization of Pixel * Rectangles) on page 151 of the GL 3.0 specification: * * "If format contains integer components, as shown in table 3.6, an * INVALID OPERATION error is generated." * * Since DrawPixels rendering would be merely undefined if not an error (due * to a lack of defined mapping from integer data to gl_Color fragment shader * input), NVIDIA's implementation also just returns this error despite * exposing GL_EXT_texture_integer, just return an error regardless. */ if (_mesa_is_enum_format_integer(format)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels(integer format)"); goto end; } err = _mesa_error_check_format_and_type(ctx, format, type); if (err != GL_NO_ERROR) { _mesa_error(ctx, err, "glDrawPixels(invalid format %s and/or type %s)", _mesa_lookup_enum_by_nr(format), _mesa_lookup_enum_by_nr(type)); goto end; } /* do special format-related checks */ switch (format) { case GL_STENCIL_INDEX: case GL_DEPTH_COMPONENT: case GL_DEPTH_STENCIL_EXT: /* these buffers must exist */ if (!_mesa_dest_buffer_exists(ctx, format)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels(missing deest buffer)"); goto end; } break; case GL_COLOR_INDEX: if (ctx->PixelMaps.ItoR.Size == 0 || ctx->PixelMaps.ItoG.Size == 0 || ctx->PixelMaps.ItoB.Size == 0) { _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels(drawing color index pixels into RGB buffer)"); goto end; } break; default: /* for color formats it's not an error if the destination color * buffer doesn't exist. */ break; } if (ctx->RasterDiscard) { 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 (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) { /* unpack from PBO */ if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, format, type, INT_MAX, 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.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); if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { _mesa_flush(ctx); } }
static 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 (MESA_VERBOSE & VERBOSE_API) _mesa_debug(ctx, "glCopyPixels(%d, %d, %d, %d, %s) // from %s to %s at %d, %d\n", srcx, srcy, width, height, _mesa_lookup_enum_by_nr(type), _mesa_lookup_enum_by_nr(ctx->ReadBuffer->ColorReadBuffer), _mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]), IROUND(ctx->Current.RasterPos[0]), IROUND(ctx->Current.RasterPos[1])); 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. Note: this may dirty some state. */ _mesa_set_vp_override(ctx, GL_TRUE); /* Note: this call does state validation */ if (!_mesa_valid_to_render(ctx, "glCopyPixels")) { goto end; /* the error code was recorded */ } /* Check read buffer's status (draw buffer was already checked) */ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, "glCopyPixels(incomplete framebuffer)" ); goto end; } if (_mesa_is_user_fbo(ctx->ReadBuffer) && ctx->ReadBuffer->Visual.samples > 0) { _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyPixels(multisample FBO)"); 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->RasterDiscard) { 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.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); if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { _mesa_flush(ctx); } }
/* * Execute glDrawPixels */ static 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); }
static 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); }