From 92d7ed8a20d4a018ce5324e6537ae7b478b9e5bf Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 27 Aug 2009 10:09:24 -0700 Subject: mesa: Add support for ARB_draw_elements_base_vertex. --- src/mesa/main/api_noop.c | 78 ++++++++++++++++++++++++++++++- src/mesa/main/api_noop.h | 7 +++ src/mesa/main/api_validate.c | 108 ++++++++++++++++--------------------------- src/mesa/main/api_validate.h | 4 +- src/mesa/main/dd.h | 17 ++++++- src/mesa/main/dlist.c | 3 ++ src/mesa/main/extensions.c | 2 + src/mesa/main/mtypes.h | 1 + src/mesa/main/varray.h | 15 ++++++ src/mesa/main/vtxfmt.c | 3 ++ src/mesa/main/vtxfmt_tmp.h | 41 ++++++++++++++++ 11 files changed, 207 insertions(+), 72 deletions(-) (limited to 'src/mesa/main') diff --git a/src/mesa/main/api_noop.c b/src/mesa/main/api_noop.c index 09ba7e5062..0b669e7e7f 100644 --- a/src/mesa/main/api_noop.c +++ b/src/mesa/main/api_noop.c @@ -731,7 +731,7 @@ _mesa_noop_DrawElements(GLenum mode, GLsizei count, GLenum type, GET_CURRENT_CONTEXT(ctx); GLint i; - if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices )) + if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 )) return; CALL_Begin(GET_DISPATCH(), (mode)); @@ -757,6 +757,43 @@ _mesa_noop_DrawElements(GLenum mode, GLsizei count, GLenum type, CALL_End(GET_DISPATCH(), ()); } +static void GLAPIENTRY +_mesa_noop_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + + if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, + basevertex )) + return; + + CALL_Begin(GET_DISPATCH(), (mode)); + + switch (type) { + case GL_UNSIGNED_BYTE: + for (i = 0 ; i < count ; i++) + CALL_ArrayElement(GET_DISPATCH(), ( ((GLubyte *)indices)[i] + + basevertex)); + break; + case GL_UNSIGNED_SHORT: + for (i = 0 ; i < count ; i++) + CALL_ArrayElement(GET_DISPATCH(), ( ((GLushort *)indices)[i] + + basevertex )); + break; + case GL_UNSIGNED_INT: + for (i = 0 ; i < count ; i++) + CALL_ArrayElement(GET_DISPATCH(), ( ((GLuint *)indices)[i] + + basevertex )); + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glDrawElementsBaseVertex(type)" ); + break; + } + + CALL_End(GET_DISPATCH(), ()); +} + static void GLAPIENTRY _mesa_noop_DrawRangeElements(GLenum mode, @@ -768,7 +805,7 @@ _mesa_noop_DrawRangeElements(GLenum mode, if (_mesa_validate_DrawRangeElements( ctx, mode, start, end, - count, type, indices )) + count, type, indices, 0 )) CALL_DrawElements(GET_DISPATCH(), (mode, count, type, indices)); } @@ -786,6 +823,40 @@ _mesa_noop_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type, } } +static void GLAPIENTRY +_mesa_noop_DrawRangeElementsBaseVertex(GLenum mode, + GLuint start, GLuint end, + GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + GET_CURRENT_CONTEXT(ctx); + + if (_mesa_validate_DrawRangeElements( ctx, mode, + start, end, + count, type, indices, basevertex )) + CALL_DrawElementsBaseVertex(GET_DISPATCH(), (mode, count, type, indices, + basevertex)); +} + +/* GL_EXT_multi_draw_arrays */ +void GLAPIENTRY +_mesa_noop_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count, + GLenum type, + const GLvoid **indices, + GLsizei primcount, + const GLint *basevertex) +{ + GLsizei i; + + for (i = 0; i < primcount; i++) { + if (count[i] > 0) { + CALL_DrawElementsBaseVertex(GET_DISPATCH(), (mode, count[i], type, + indices[i], + basevertex[i])); + } + } +} + /* * Eval Mesh */ @@ -995,6 +1066,9 @@ _mesa_noop_vtxfmt_init( GLvertexformat *vfmt ) vfmt->DrawElements = _mesa_noop_DrawElements; vfmt->DrawRangeElements = _mesa_noop_DrawRangeElements; vfmt->MultiDrawElementsEXT = _mesa_noop_MultiDrawElements; + vfmt->DrawElementsBaseVertex = _mesa_noop_DrawElementsBaseVertex; + vfmt->DrawRangeElementsBaseVertex = _mesa_noop_DrawRangeElementsBaseVertex; + vfmt->MultiDrawElementsBaseVertex = _mesa_noop_MultiDrawElementsBaseVertex; vfmt->EvalMesh1 = _mesa_noop_EvalMesh1; vfmt->EvalMesh2 = _mesa_noop_EvalMesh2; } diff --git a/src/mesa/main/api_noop.h b/src/mesa/main/api_noop.h index a7956d00b3..1150984d64 100644 --- a/src/mesa/main/api_noop.h +++ b/src/mesa/main/api_noop.h @@ -44,6 +44,13 @@ extern void GLAPIENTRY _mesa_noop_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount); +extern void GLAPIENTRY +_mesa_noop_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count, + GLenum type, + const GLvoid **indices, + GLsizei primcount, + const GLint *basevertex); + extern void _mesa_noop_vtxfmt_init(GLvertexformat *vfmt); diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c index 2df4f17389..4a1448deee 100644 --- a/src/mesa/main/api_validate.c +++ b/src/mesa/main/api_validate.c @@ -29,7 +29,7 @@ #include "imports.h" #include "mtypes.h" #include "state.h" - +#include "vbo/vbo.h" /** @@ -51,51 +51,6 @@ index_bytes(GLenum type, GLsizei count) } -/** - * Find the max index in the given element/index buffer - */ -static GLuint -max_buffer_index(GLcontext *ctx, GLuint count, GLenum type, - const void *indices, - struct gl_buffer_object *elementBuf) -{ - const GLubyte *map = NULL; - GLuint max = 0; - GLuint i; - - if (_mesa_is_bufferobj(elementBuf)) { - /* elements are in a user-defined buffer object. need to map it */ - map = ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, - GL_READ_ONLY, elementBuf); - /* Actual address is the sum of pointers */ - indices = (const GLvoid *) ADD_POINTERS(map, (const GLubyte *) indices); - } - - if (type == GL_UNSIGNED_INT) { - for (i = 0; i < count; i++) - if (((GLuint *) indices)[i] > max) - max = ((GLuint *) indices)[i]; - } - else if (type == GL_UNSIGNED_SHORT) { - for (i = 0; i < count; i++) - if (((GLushort *) indices)[i] > max) - max = ((GLushort *) indices)[i]; - } - else { - ASSERT(type == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) - if (((GLubyte *) indices)[i] > max) - max = ((GLubyte *) indices)[i]; - } - - if (map) { - ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, elementBuf); - } - - return max; -} - - /** * Check if OK to draw arrays/elements. */ @@ -124,6 +79,40 @@ check_valid_to_render(GLcontext *ctx, const char *function) return GL_TRUE; } +static GLboolean +check_index_bounds(GLcontext *ctx, GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + struct _mesa_prim prim; + struct _mesa_index_buffer ib; + GLuint min, max; + + /* Only the X Server needs to do this -- otherwise, accessing outside + * array/BO bounds allows application termination. + */ + if (!ctx->Const.CheckArrayBounds) + return GL_TRUE; + + memset(&prim, 0, sizeof(prim)); + prim.count = count; + + memset(&ib, 0, sizeof(ib)); + ib.type = type; + ib.ptr = indices; + ib.obj = ctx->Array.ElementArrayBufferObj; + + vbo_get_minmax_index(ctx, &prim, &ib, &min, &max); + + if (min + basevertex < 0 || + max + basevertex > ctx->Array.ArrayObj->_MaxElement) { + /* the max element is out of bounds of one or more enabled arrays */ + _mesa_warning(ctx, "glDrawElements() index=%u is " + "out of bounds (max=%u)", max, ctx->Array.ArrayObj->_MaxElement); + return GL_FALSE; + } + + return GL_TRUE; +} /** * Error checking for glDrawElements(). Includes parameter checking @@ -133,7 +122,7 @@ check_valid_to_render(GLcontext *ctx, const char *function) GLboolean _mesa_validate_DrawElements(GLcontext *ctx, GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices) + const GLvoid *indices, GLint basevertex) { ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); @@ -177,17 +166,8 @@ _mesa_validate_DrawElements(GLcontext *ctx, return GL_FALSE; } - if (ctx->Const.CheckArrayBounds) { - /* find max array index */ - GLuint max = max_buffer_index(ctx, count, type, indices, - ctx->Array.ElementArrayBufferObj); - if (max >= ctx->Array.ArrayObj->_MaxElement) { - /* the max element is out of bounds of one or more enabled arrays */ - _mesa_warning(ctx, "glDrawElements() index=%u is " - "out of bounds (max=%u)", max, ctx->Array.ArrayObj->_MaxElement); - return GL_FALSE; - } - } + if (!check_index_bounds(ctx, count, type, indices, basevertex)) + return GL_FALSE; return GL_TRUE; } @@ -202,7 +182,7 @@ GLboolean _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, - const GLvoid *indices) + const GLvoid *indices, GLint basevertex) { ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); @@ -250,14 +230,8 @@ _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode, return GL_FALSE; } - if (ctx->Const.CheckArrayBounds) { - GLuint max = max_buffer_index(ctx, count, type, indices, - ctx->Array.ElementArrayBufferObj); - if (max >= ctx->Array.ArrayObj->_MaxElement) { - /* the max element is out of bounds of one or more enabled arrays */ - return GL_FALSE; - } - } + if (!check_index_bounds(ctx, count, type, indices, basevertex)) + return GL_FALSE; return GL_TRUE; } diff --git a/src/mesa/main/api_validate.h b/src/mesa/main/api_validate.h index 10f0c34e66..1d3ae157d7 100644 --- a/src/mesa/main/api_validate.h +++ b/src/mesa/main/api_validate.h @@ -37,13 +37,13 @@ _mesa_validate_DrawArrays(GLcontext *ctx, extern GLboolean _mesa_validate_DrawElements(GLcontext *ctx, GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices); + const GLvoid *indices, GLint basevertex); extern GLboolean _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, - const GLvoid *indices); + const GLvoid *indices, GLint basevertex); #endif diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h index 4a700b5cb4..ce5e158626 100644 --- a/src/mesa/main/dd.h +++ b/src/mesa/main/dd.h @@ -1172,7 +1172,22 @@ typedef struct { GLenum type, const GLvoid **indices, GLsizei primcount); - /*@}*/ + void (GLAPIENTRYP DrawElementsBaseVertex)( GLenum mode, GLsizei count, + GLenum type, + const GLvoid *indices, + GLint basevertex ); + void (GLAPIENTRYP DrawRangeElementsBaseVertex)( GLenum mode, GLuint start, + GLuint end, GLsizei count, + GLenum type, + const GLvoid *indices, + GLint basevertex); + void (GLAPIENTRYP MultiDrawElementsBaseVertex)( GLenum mode, + const GLsizei *count, + GLenum type, + const GLvoid **indices, + GLsizei primcount, + const GLint *basevertex); + /*@}*/ /** * \name Eval diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c index 8cff9ea64a..d721f699fd 100644 --- a/src/mesa/main/dlist.c +++ b/src/mesa/main/dlist.c @@ -8711,6 +8711,9 @@ _mesa_save_vtxfmt_init(GLvertexformat * vfmt) vfmt->DrawElements = 0; vfmt->DrawRangeElements = 0; vfmt->MultiDrawElemementsEXT = 0; + vfmt->DrawElementsBaseVertex = 0; + vfmt->DrawRangeElementsBaseVertex = 0; + vfmt->MultiDrawElemementsBaseVertex = 0; #endif } diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index d0e77bafdd..2ad66de7dd 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -49,6 +49,7 @@ static const struct { { OFF, "GL_ARB_depth_texture", F(ARB_depth_texture) }, { OFF, "GL_ARB_depth_clamp", F(ARB_depth_clamp) }, { ON, "GL_ARB_draw_buffers", F(ARB_draw_buffers) }, + { OFF, "GL_ARB_draw_elements_base_vertex", F(ARB_draw_elements_base_vertex) }, { OFF, "GL_ARB_fragment_program", F(ARB_fragment_program) }, { OFF, "GL_ARB_fragment_program_shadow", F(ARB_fragment_program_shadow) }, { OFF, "GL_ARB_fragment_shader", F(ARB_fragment_shader) }, @@ -197,6 +198,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx) ctx->Extensions.ARB_depth_clamp = GL_TRUE; ctx->Extensions.ARB_depth_texture = GL_TRUE; /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/ + ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; #if FEATURE_ARB_fragment_program ctx->Extensions.ARB_fragment_program = GL_TRUE; ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 20cd3aa5c0..ae169fb9db 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -2478,6 +2478,7 @@ struct gl_extensions GLboolean ARB_depth_texture; GLboolean ARB_depth_clamp; GLboolean ARB_draw_buffers; + GLboolean ARB_draw_elements_base_vertex; GLboolean ARB_fragment_program; GLboolean ARB_fragment_program_shadow; GLboolean ARB_fragment_shader; diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h index becc67c29d..ef790c504e 100644 --- a/src/mesa/main/varray.h +++ b/src/mesa/main/varray.h @@ -129,6 +129,11 @@ extern void GLAPIENTRY _mesa_MultiDrawElementsEXT( GLenum mode, const GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount ); +extern void GLAPIENTRY +_mesa_MultiDrawElementsBaseVertex( GLenum mode, + const GLsizei *count, GLenum type, + const GLvoid **indices, GLsizei primcount, + const GLint *basevertex); extern void GLAPIENTRY _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first, @@ -159,6 +164,16 @@ extern void GLAPIENTRY _mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices); +extern void GLAPIENTRY +_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex); + +extern void GLAPIENTRY +_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, + GLsizei count, GLenum type, + const GLvoid *indices, + GLint basevertex); + extern void _mesa_copy_client_array(GLcontext *ctx, diff --git a/src/mesa/main/vtxfmt.c b/src/mesa/main/vtxfmt.c index 8d6f560a80..91412f138a 100644 --- a/src/mesa/main/vtxfmt.c +++ b/src/mesa/main/vtxfmt.c @@ -134,6 +134,9 @@ install_vtxfmt( struct _glapi_table *tab, const GLvertexformat *vfmt ) SET_DrawElements(tab, vfmt->DrawElements); SET_DrawRangeElements(tab, vfmt->DrawRangeElements); SET_MultiDrawElementsEXT(tab, vfmt->MultiDrawElementsEXT); + SET_DrawElementsBaseVertex(tab, vfmt->DrawElementsBaseVertex); + SET_DrawRangeElementsBaseVertex(tab, vfmt->DrawRangeElementsBaseVertex); + SET_MultiDrawElementsBaseVertex(tab, vfmt->MultiDrawElementsBaseVertex); SET_EvalMesh1(tab, vfmt->EvalMesh1); SET_EvalMesh2(tab, vfmt->EvalMesh2); ASSERT(tab->EvalMesh2); diff --git a/src/mesa/main/vtxfmt_tmp.h b/src/mesa/main/vtxfmt_tmp.h index 1308d0aa46..d56a2bb95e 100644 --- a/src/mesa/main/vtxfmt_tmp.h +++ b/src/mesa/main/vtxfmt_tmp.h @@ -354,6 +354,44 @@ static void GLAPIENTRY TAG(DrawRangeElements)( GLenum mode, GLuint start, CALL_DrawRangeElements(GET_DISPATCH(), ( mode, start, end, count, type, indices )); } +static void GLAPIENTRY TAG(DrawElementsBaseVertex)( GLenum mode, + GLsizei count, + GLenum type, + const GLvoid *indices, + GLint basevertex) +{ + PRE_LOOPBACK( DrawElementsBaseVertex ); + CALL_DrawElementsBaseVertex(GET_DISPATCH(), ( mode, count, type, + indices, basevertex )); +} + +static void GLAPIENTRY TAG(DrawRangeElementsBaseVertex)( GLenum mode, + GLuint start, + GLuint end, + GLsizei count, + GLenum type, + const GLvoid *indices, + GLint basevertex) +{ + PRE_LOOPBACK( DrawRangeElementsBaseVertex ); + CALL_DrawRangeElementsBaseVertex(GET_DISPATCH(), ( mode, start, end, + count, type, indices, + basevertex )); +} + +static void GLAPIENTRY TAG(MultiDrawElementsBaseVertex)( GLenum mode, + const GLsizei *count, + GLenum type, + const GLvoid **indices, + GLsizei primcount, + const GLint *basevertex) +{ + PRE_LOOPBACK( MultiDrawElementsBaseVertex ); + CALL_MultiDrawElementsBaseVertex(GET_DISPATCH(), ( mode, count, type, + indices, + primcount, basevertex )); +} + static void GLAPIENTRY TAG(EvalMesh1)( GLenum mode, GLint i1, GLint i2 ) { PRE_LOOPBACK( EvalMesh1 ); @@ -534,6 +572,9 @@ static GLvertexformat TAG(vtxfmt) = { TAG(DrawElements), TAG(DrawRangeElements), TAG(MultiDrawElementsEXT), + TAG(DrawElementsBaseVertex), + TAG(DrawRangeElementsBaseVertex), + TAG(MultiDrawElementsBaseVertex), TAG(EvalMesh1), TAG(EvalMesh2) }; -- cgit v1.2.3