static void
feedback_vertex(struct gl_context *ctx, const struct draw_context *draw,
const struct vertex_header *v)
{
const struct st_context *st = st_context(ctx);
GLfloat win[4];
const GLfloat *color, *texcoord;
GLuint slot;
/* Recall that Y=0=Top of window for Gallium wincoords */
win[0] = v->data[0][0];
win[1] = ctx->DrawBuffer->Height - v->data[0][1];
win[2] = v->data[0][2];
win[3] = 1.0F / v->data[0][3];
/* XXX
* When we compute vertex layout, save info about position of the
* color and texcoord attribs to use here.
*/
slot = st->vertex_result_to_slot[VERT_RESULT_COL0];
if (slot != ~0U)
color = v->data[slot];
else
color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
slot = st->vertex_result_to_slot[VERT_RESULT_TEX0];
if (slot != ~0U)
texcoord = v->data[slot];
else
texcoord = ctx->Current.Attrib[VERT_ATTRIB_TEX0];
_mesa_feedback_vertex(ctx, win, color, texcoord);
}
static void feedback_vertex( GLcontext *ctx,
const SWvertex *v, const SWvertex *pv )
{
const GLuint texUnit = 0; /* See section 5.3 of 1.2.1 spec */
GLfloat win[4];
GLfloat color[4];
GLfloat tc[4];
win[0] = v->win[0];
win[1] = v->win[1];
win[2] = v->win[2] / ctx->DepthMaxF;
win[3] = 1.0F / v->win[3];
color[0] = CHAN_TO_FLOAT(pv->color[0]);
color[1] = CHAN_TO_FLOAT(pv->color[1]);
color[2] = CHAN_TO_FLOAT(pv->color[2]);
color[3] = CHAN_TO_FLOAT(pv->color[3]);
if (v->texcoord[texUnit][3] != 1.0 &&
v->texcoord[texUnit][3] != 0.0) {
GLfloat invq = 1.0F / v->texcoord[texUnit][3];
tc[0] = v->texcoord[texUnit][0] * invq;
tc[1] = v->texcoord[texUnit][1] * invq;
tc[2] = v->texcoord[texUnit][2] * invq;
tc[3] = v->texcoord[texUnit][3];
}
else {
COPY_4V(tc, v->texcoord[texUnit]);
}
_mesa_feedback_vertex( ctx, win, color, (GLfloat) v->index, tc );
}
/*
* 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;
}
if (ctx->NewState) {
_mesa_update_state(ctx);
}
if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels (invalid fragment program)");
return;
}
if (error_check_format_type(ctx, format, type, GL_TRUE)) {
/* found an error */
return;
}
if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
"glDrawPixels(incomplete framebuffer)" );
return;
}
if (!ctx->Current.RasterPosValid) {
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.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 );
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. */
}
}
void
_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 == GL_FALSE) {
return; /* do nothing */
}
if (ctx->RenderMode==GL_RENDER) {
if (bitmap) {
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig);
GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig);
if (ctx->NewState) {
_mesa_update_state(ctx);
}
ctx->OcclusionResult = GL_TRUE;
ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
}
}
else if (ctx->RenderMode==GL_FEEDBACK) {
if (ctx->Current.RasterPosValid) {
FLUSH_CURRENT(ctx, 0);
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoord );
}
}
else if (ctx->RenderMode==GL_SELECT) {
/* Bitmaps don't generate selection hits. See appendix B of 1.1 spec. */
}
/* update raster position */
ctx->Current.RasterPos[0] += xmove;
ctx->Current.RasterPos[1] += ymove;
}
static void
feedback_vertex(struct gl_context * ctx, const SWvertex * v, const SWvertex * pv)
{
GLfloat win[4];
const GLfloat *vtc = v->attrib[VARYING_SLOT_TEX0];
const GLfloat *color = v->attrib[VARYING_SLOT_COL0];
win[0] = v->attrib[VARYING_SLOT_POS][0];
win[1] = v->attrib[VARYING_SLOT_POS][1];
win[2] = v->attrib[VARYING_SLOT_POS][2] / ctx->DrawBuffer->_DepthMaxF;
win[3] = 1.0F / v->attrib[VARYING_SLOT_POS][3];
_mesa_feedback_vertex(ctx, win, color, vtc);
}
static void
feedback_vertex(GLcontext * ctx, const SWvertex * v, const SWvertex * pv)
{
GLfloat win[4];
const GLfloat *vtc = v->attrib[FRAG_ATTRIB_TEX0];
const GLfloat *color = v->attrib[FRAG_ATTRIB_COL0];
win[0] = v->attrib[FRAG_ATTRIB_WPOS][0];
win[1] = v->attrib[FRAG_ATTRIB_WPOS][1];
win[2] = v->attrib[FRAG_ATTRIB_WPOS][2] / ctx->DrawBuffer->_DepthMaxF;
win[3] = 1.0F / v->attrib[FRAG_ATTRIB_WPOS][3];
_mesa_feedback_vertex(ctx, win, color, v->attrib[FRAG_ATTRIB_CI][0], vtc);
}
/*
* Execute glDrawPixels
*/
void
_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;
}
if (ctx->RenderMode==GL_RENDER) {
GLint x, y;
if (!pixels || !ctx->Current.RasterPosValid) {
return;
}
if (ctx->NewState) {
_mesa_update_state(ctx);
}
/* Round, to satisfy conformance tests (matches SGI's OpenGL) */
x = IROUND(ctx->Current.RasterPos[0]);
y = IROUND(ctx->Current.RasterPos[1]);
ctx->OcclusionResult = GL_TRUE;
ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
&ctx->Unpack, pixels);
}
else if (ctx->RenderMode==GL_FEEDBACK) {
if (ctx->Current.RasterPosValid) {
FLUSH_CURRENT(ctx, 0);
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoord );
}
}
else if (ctx->RenderMode==GL_SELECT) {
if (ctx->Current.RasterPosValid) {
_mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
}
}
}
void
_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
GLenum type )
{
GET_CURRENT_CONTEXT(ctx);
GLint destx, desty;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)" );
return;
}
if (ctx->NewState) {
_mesa_update_state(ctx);
}
if (ctx->RenderMode==GL_RENDER) {
/* Destination of copy: */
if (!ctx->Current.RasterPosValid) {
return;
}
/* Round, to satisfy conformance tests (matches SGI's OpenGL) */
destx = IROUND(ctx->Current.RasterPos[0]);
desty = IROUND(ctx->Current.RasterPos[1]);
ctx->OcclusionResult = GL_TRUE;
ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty,
type );
}
else if (ctx->RenderMode == GL_FEEDBACK) {
if (ctx->Current.RasterPosValid) {
FLUSH_CURRENT(ctx, 0);
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoord );
}
}
else if (ctx->RenderMode == GL_SELECT) {
_mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
}
}
/*
* 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_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 */
}
/* Note: this call does state validation */
if (!_mesa_valid_to_render(ctx, "glBitmap")) {
/* the error code was recorded */
return;
}
if (ctx->RasterDiscard)
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 (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
/* unpack from PBO */
if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height,
1, GL_COLOR_INDEX, GL_BITMAP,
INT_MAX, (const 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.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;
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_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;
}
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);
}
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 (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
_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) {
if (bitmap) {
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig);
GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig);
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);
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;
}
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 (ctx->NewState) {
_mesa_update_state(ctx);
}
if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
_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;
}
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;
}
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;
}
if (!ctx->Current.RasterPosValid) {
return;
}
if (ctx->RenderMode == GL_RENDER) {
/* Round to satisfy conformance tests (matches SGI's OpenGL) */
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 );
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. */
}
}