#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"
+#include "main/dispatch.h"
-#if _HAVE_FULL_GL
+#if FEATURE_drawpix
+
+
+/**
+ * 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);
+}
+
/*
* Execute glDrawPixels
*/
-void GLAPIENTRY
+static void GLAPIENTRY
_mesa_DrawPixels( GLsizei width, GLsizei height,
GLenum format, GLenum type, const GLvoid *pixels )
{
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 (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ if (!valid_fragment_program(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels (invalid fragment program)");
- return;
+ goto end;
}
if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
- /* found an error */
- return;
+ /* 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)" );
- return;
+ goto end;
}
if (!ctx->Current.RasterPosValid) {
- return;
+ goto end; /* no-op, not an error */
}
if (ctx->RenderMode == GL_RENDER) {
format, type, pixels)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(invalid PBO access)");
- return;
+ goto end;
}
- if (ctx->Unpack.BufferObj->Pointer) {
+ if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(PBO is mapped)");
- return;
+ goto end;
}
}
_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
+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 (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ if (!valid_fragment_program(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyPixels (invalid fragment program)");
- return;
- }
-
- if (width < 0 || height < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)");
- return;
+ 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)" );
- return;
+ 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)");
- return;
+ goto end;
}
if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
- return;
+ goto end; /* no-op, not an error */
}
if (ctx->RenderMode == GL_RENDER) {
_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 /* _HAVE_FULL_GL */
+end:
+ _mesa_set_vp_override(ctx, GL_FALSE);
+}
-void GLAPIENTRY
+static void GLAPIENTRY
_mesa_Bitmap( GLsizei width, GLsizei height,
GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
const GLubyte *bitmap )
_mesa_update_state(ctx);
}
- if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ if (!valid_fragment_program(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap (invalid fragment program)");
return;
if (ctx->RenderMode == GL_RENDER) {
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
- 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 (ctx->Unpack.BufferObj->Pointer) {
- /* buffer is mapped - that's an error */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)");
- return;
+ 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 );
+ ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
+ }
}
#if _HAVE_FULL_GL
else if (ctx->RenderMode == GL_FEEDBACK) {
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
- ctx->Current.RasterIndex,
ctx->Current.RasterTexCoords[0] );
}
else {
}
-
-#if 0 /* experimental */
-/*
- * Execute glDrawDepthPixelsMESA(). This function accepts both a color
- * image and depth (Z) image. Rasterization produces fragments with
- * color and Z taken from these images. This function is intended for
- * Z-compositing. Normally, this operation requires two glDrawPixels
- * calls with stencil testing.
- */
-void GLAPIENTRY
-_mesa_DrawDepthPixelsMESA( GLsizei width, GLsizei height,
- GLenum colorFormat, GLenum colorType,
- const GLvoid *colors,
- GLenum depthType, const GLvoid *depths )
+void
+_mesa_init_drawpix_dispatch(struct _glapi_table *disp)
{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (width < 0 || height < 0) {
- _mesa_error( ctx, GL_INVALID_VALUE,
- "glDrawDepthPixelsMESA(width or height < 0" );
- return;
- }
-
- if (!ctx->Current.RasterPosValid) {
- return;
- }
-
- if (ctx->NewState) {
- _mesa_update_state(ctx);
- }
-
- if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glDrawDepthPixelsMESA(incomplete framebuffer)");
- return;
- }
-
- if (ctx->RenderMode == GL_RENDER) {
- /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
- GLint x = IROUND(ctx->Current.RasterPos[0]);
- GLint y = IROUND(ctx->Current.RasterPos[1]);
- ctx->Driver.DrawDepthPixelsMESA(ctx, x, y, width, height,
- colorFormat, colorType, colors,
- depthType, depths, &ctx->Unpack);
- }
- 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. */
- }
+ SET_Bitmap(disp, _mesa_Bitmap);
+ SET_CopyPixels(disp, _mesa_CopyPixels);
+ SET_DrawPixels(disp, _mesa_DrawPixels);
}
-#endif
+
+#endif /* FEATURE_drawpix */
projects / mesa.git / blobdiff