#include "main/context.h"
#include "main/state.h"
#include "main/api_validate.h"
-#include "main/api_noop.h"
#include "main/varray.h"
#include "main/bufferobj.h"
-#include "glapi/dispatch.h"
+#include "main/enums.h"
+#include "main/macros.h"
#include "vbo_context.h"
/**
- * Compute min and max elements for glDraw[Range]Elements() calls.
+ * Compute min and max elements by scanning the index buffer for
+ * glDraw[Range]Elements() calls.
*/
-static void
-get_minmax_index(GLuint count, GLuint type, const GLvoid *indices,
- GLuint *min_index, GLuint *max_index)
+void
+vbo_get_minmax_index(struct gl_context *ctx,
+ const struct _mesa_prim *prim,
+ const struct _mesa_index_buffer *ib,
+ GLuint *min_index, GLuint *max_index)
{
GLuint i;
+ GLuint count = prim->count;
+ const void *indices;
+
+ if (_mesa_is_bufferobj(ib->obj)) {
+ const GLvoid *map =
+ ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,
+ GL_READ_ONLY, ib->obj);
+ indices = ADD_POINTERS(map, ib->ptr);
+ } else {
+ indices = ib->ptr;
+ }
- switch(type) {
+ switch (ib->type) {
case GL_UNSIGNED_INT: {
const GLuint *ui_indices = (const GLuint *)indices;
GLuint max_ui = ui_indices[count-1];
assert(0);
break;
}
+
+ if (_mesa_is_bufferobj(ib->obj)) {
+ ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, ib->obj);
+ }
}
/**
* Check that element 'j' of the array has reasonable data.
* Map VBO if needed.
+ * For debugging purposes; not normally used.
*/
static void
-check_array_data(GLcontext *ctx, struct gl_client_array *array,
+check_array_data(struct gl_context *ctx, struct gl_client_array *array,
GLuint attrib, GLuint j)
{
if (array->Enabled) {
const void *data = array->Ptr;
- if (array->BufferObj->Name) {
+ if (_mesa_is_bufferobj(array->BufferObj)) {
if (!array->BufferObj->Pointer) {
/* need to map now */
- array->BufferObj->Pointer = ctx->Driver.MapBuffer(ctx,
- GL_ARRAY_BUFFER_ARB,
- GL_READ_ONLY,
- array->BufferObj);
+ array->BufferObj->Pointer =
+ ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB,
+ GL_READ_ONLY, array->BufferObj);
}
data = ADD_POINTERS(data, array->BufferObj->Pointer);
}
case GL_FLOAT:
{
GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j);
- GLuint k;
+ GLint k;
for (k = 0; k < array->Size; k++) {
if (IS_INF_OR_NAN(f[k]) ||
f[k] >= 1.0e20 || f[k] <= -1.0e10) {
- _mesa_printf("Bad array data:\n");
- _mesa_printf(" Element[%u].%u = %f\n", j, k, f[k]);
- _mesa_printf(" Array %u at %p\n", attrib, (void* ) array);
- _mesa_printf(" Type 0x%x, Size %d, Stride %d\n",
- array->Type, array->Size, array->Stride);
- _mesa_printf(" Address/offset %p in Buffer Object %u\n",
- array->Ptr, array->BufferObj->Name);
+ printf("Bad array data:\n");
+ printf(" Element[%u].%u = %f\n", j, k, f[k]);
+ printf(" Array %u at %p\n", attrib, (void* ) array);
+ printf(" Type 0x%x, Size %d, Stride %d\n",
+ array->Type, array->Size, array->Stride);
+ printf(" Address/offset %p in Buffer Object %u\n",
+ array->Ptr, array->BufferObj->Name);
f[k] = 1.0; /* XXX replace the bad value! */
}
- //assert(!IS_INF_OR_NAN(f[k]));
+ /*assert(!IS_INF_OR_NAN(f[k]));*/
}
}
break;
* Unmap the buffer object referenced by given array, if mapped.
*/
static void
-unmap_array_buffer(GLcontext *ctx, struct gl_client_array *array)
+unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array)
{
if (array->Enabled &&
- array->BufferObj->Name &&
- array->BufferObj->Pointer) {
- ctx->Driver.UnmapBuffer(ctx,
- GL_ARRAY_BUFFER_ARB,
- array->BufferObj);
+ _mesa_is_bufferobj(array->BufferObj) &&
+ _mesa_bufferobj_mapped(array->BufferObj)) {
+ ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, array->BufferObj);
}
}
/**
* Examine the array's data for NaNs, etc.
+ * For debug purposes; not normally used.
*/
static void
-check_draw_elements_data(GLcontext *ctx, GLsizei count, GLenum elemType,
- const void *elements)
+check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType,
+ const void *elements, GLint basevertex)
{
struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
const void *elemMap;
GLint i, k;
- if (ctx->Array.ElementArrayBufferObj->Name) {
+ if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
elemMap = ctx->Driver.MapBuffer(ctx,
GL_ELEMENT_ARRAY_BUFFER_ARB,
GL_READ_ONLY,
check_array_data(ctx, &arrayObj->TexCoord[k], VERT_ATTRIB_TEX0 + k, j);
}
for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) {
- check_array_data(ctx, &arrayObj->VertexAttrib[k], VERT_ATTRIB_GENERIC0 + k, j);
+ check_array_data(ctx, &arrayObj->VertexAttrib[k],
+ VERT_ATTRIB_GENERIC0 + k, j);
}
}
- if (ctx->Array.ElementArrayBufferObj->Name) {
- ctx->Driver.UnmapBuffer(ctx,
- GL_ELEMENT_ARRAY_BUFFER_ARB,
+ if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
+ ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,
ctx->Array.ElementArrayBufferObj);
}
* Check array data, looking for NaNs, etc.
*/
static void
-check_draw_arrays_data(GLcontext *ctx, GLint start, GLsizei count)
+check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count)
{
/* TO DO */
}
/**
- * Print info/data for glDrawArrays().
+ * Print info/data for glDrawArrays(), for debugging.
*/
static void
-print_draw_arrays(GLcontext *ctx, struct vbo_exec_context *exec,
+print_draw_arrays(struct gl_context *ctx, struct vbo_exec_context *exec,
GLenum mode, GLint start, GLsizei count)
{
int i;
- _mesa_printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
- mode, start, count);
+ printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
+ mode, start, count);
for (i = 0; i < 32; i++) {
GLuint bufName = exec->array.inputs[i]->BufferObj->Name;
GLint stride = exec->array.inputs[i]->Stride;
- _mesa_printf("attr %2d: size %d stride %d enabled %d "
- "ptr %p Bufobj %u\n",
- i,
- exec->array.inputs[i]->Size,
- stride,
- /*exec->array.inputs[i]->Enabled,*/
- exec->array.legacy_array[i]->Enabled,
- exec->array.inputs[i]->Ptr,
- bufName);
+ printf("attr %2d: size %d stride %d enabled %d "
+ "ptr %p Bufobj %u\n",
+ i,
+ exec->array.inputs[i]->Size,
+ stride,
+ /*exec->array.inputs[i]->Enabled,*/
+ exec->array.legacy_array[i]->Enabled,
+ exec->array.inputs[i]->Ptr,
+ bufName);
if (bufName) {
struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, bufName);
int n = (count * stride) / 4;
if (n > 32)
n = 32;
- _mesa_printf(" Data at offset %d:\n", offset);
+ printf(" Data at offset %d:\n", offset);
for (i = 0; i < n; i++) {
- _mesa_printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]);
+ printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]);
}
ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, buf);
}
/**
+ * Bind the VBO executor to the current vertex array object prior
+ * to drawing.
+ *
* Just translate the arrayobj into a sane layout.
*/
static void
-bind_array_obj(GLcontext *ctx)
+bind_array_obj(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
}
+/**
+ * Set the vbo->exec->inputs[] pointers to point to the enabled
+ * vertex arrays. This depends on the current vertex program/shader
+ * being executed because of whether or not generic vertex arrays
+ * alias the conventional vertex arrays.
+ * For arrays that aren't enabled, we set the input[attrib] pointer
+ * to point at a zero-stride current value "array".
+ */
static void
-recalculate_input_bindings(GLcontext *ctx)
+recalculate_input_bindings(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
}
+/**
+ * Examine the enabled vertex arrays to set the exec->array.inputs[] values.
+ * These will point to the arrays to actually use for drawing. Some will
+ * be user-provided arrays, other will be zero-stride const-valued arrays.
+ * Note that this might set the _NEW_ARRAY dirty flag so state validation
+ * must be done after this call.
+ */
static void
-bind_arrays(GLcontext *ctx)
+bind_arrays(struct gl_context *ctx)
{
-#if 0
- if (ctx->Array.ArrayObj.Name != exec->array.array_obj) {
- bind_array_obj(ctx);
- recalculate_input_bindings(ctx);
- }
- else if (exec->array.program_mode != get_program_mode(ctx) ||
- exec->array.enabled_flags != ctx->Array.ArrayObj->_Enabled) {
-
- recalculate_input_bindings(ctx);
- }
-#else
bind_array_obj(ctx);
recalculate_input_bindings(ctx);
-#endif
}
-/***********************************************************************
- * API functions.
+/**
+ * Called from glDrawArrays when in immediate mode (not display list mode).
*/
-
static void GLAPIENTRY
vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
{
struct vbo_exec_context *exec = &vbo->exec;
struct _mesa_prim prim[1];
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), start, count);
+
if (!_mesa_validate_DrawArrays( ctx, mode, start, count ))
return;
FLUSH_CURRENT( ctx, 0 );
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
- if (!vbo_validate_shaders(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawArrays(bad shader)");
+ if (!_mesa_valid_to_render(ctx, "glDrawArrays")) {
return;
}
prim[0].start = start;
prim[0].count = count;
prim[0].indexed = 0;
+ prim[0].basevertex = 0;
+ prim[0].num_instances = 1;
vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
- start, start + count - 1 );
+ GL_TRUE, start, start + count - 1 );
#if 0
print_draw_arrays(ctx, exec, mode, start, count);
}
+/**
+ * Called from glDrawArraysInstanced when in immediate mode (not
+ * display list mode).
+ */
+static void GLAPIENTRY
+vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count,
+ GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct vbo_context *vbo = vbo_context(ctx);
+ struct vbo_exec_context *exec = &vbo->exec;
+ struct _mesa_prim prim[1];
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), start, count, primcount);
+
+ if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, primcount))
+ return;
+
+ FLUSH_CURRENT( ctx, 0 );
+
+ if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) {
+ return;
+ }
+
+#if 0 /* debug */
+ check_draw_arrays_data(ctx, start, count);
+#endif
+
+ bind_arrays( ctx );
+
+ /* Again... because we may have changed the bitmask of per-vertex varying
+ * attributes. If we regenerate the fixed-function vertex program now
+ * we may be able to prune down the number of vertex attributes which we
+ * need in the shader.
+ */
+ if (ctx->NewState)
+ _mesa_update_state( ctx );
+
+ prim[0].begin = 1;
+ prim[0].end = 1;
+ prim[0].weak = 0;
+ prim[0].pad = 0;
+ prim[0].mode = mode;
+ prim[0].start = start;
+ prim[0].count = count;
+ prim[0].indexed = 0;
+ prim[0].basevertex = 0;
+ prim[0].num_instances = primcount;
+
+ vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
+ GL_TRUE, start, start + count - 1 );
+
+#if 0 /* debug */
+ print_draw_arrays(ctx, exec, mode, start, count);
+#endif
+}
+
+
/**
* Map GL_ELEMENT_ARRAY_BUFFER and print contents.
+ * For debugging.
*/
static void
-dump_element_buffer(GLcontext *ctx, GLenum type)
+dump_element_buffer(struct gl_context *ctx, GLenum type)
{
const GLvoid *map = ctx->Driver.MapBuffer(ctx,
GL_ELEMENT_ARRAY_BUFFER_ARB,
case GL_UNSIGNED_BYTE:
{
const GLubyte *us = (const GLubyte *) map;
- GLuint i;
+ GLint i;
for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size; i++) {
- _mesa_printf("%02x ", us[i]);
+ printf("%02x ", us[i]);
if (i % 32 == 31)
- _mesa_printf("\n");
+ printf("\n");
}
- _mesa_printf("\n");
+ printf("\n");
}
break;
case GL_UNSIGNED_SHORT:
{
const GLushort *us = (const GLushort *) map;
- GLuint i;
+ GLint i;
for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 2; i++) {
- _mesa_printf("%04x ", us[i]);
+ printf("%04x ", us[i]);
if (i % 16 == 15)
- _mesa_printf("\n");
+ printf("\n");
}
- _mesa_printf("\n");
+ printf("\n");
}
break;
case GL_UNSIGNED_INT:
{
const GLuint *us = (const GLuint *) map;
- GLuint i;
+ GLint i;
for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 4; i++) {
- _mesa_printf("%08x ", us[i]);
+ printf("%08x ", us[i]);
if (i % 8 == 7)
- _mesa_printf("\n");
+ printf("\n");
}
- _mesa_printf("\n");
+ printf("\n");
}
break;
default:
;
}
- ctx->Driver.UnmapBuffer(ctx,
- GL_ELEMENT_ARRAY_BUFFER_ARB,
+ ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB,
ctx->Array.ElementArrayBufferObj);
}
-static void GLAPIENTRY
-vbo_exec_DrawRangeElements(GLenum mode,
- GLuint start, GLuint end,
- GLsizei count, GLenum type, const GLvoid *indices)
+/**
+ * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.
+ * Do the rendering for a glDrawElements or glDrawRangeElements call after
+ * we've validated buffer bounds, etc.
+ */
+static void
+vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode,
+ GLboolean index_bounds_valid,
+ GLuint start, GLuint end,
+ GLsizei count, GLenum type,
+ const GLvoid *indices,
+ GLint basevertex, GLint primcount)
{
- GET_CURRENT_CONTEXT(ctx);
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct _mesa_index_buffer ib;
struct _mesa_prim prim[1];
- if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count,
- type, indices ))
- return;
-
- if (end >= ctx->Array.ArrayObj->_MaxElement) {
- /* the max element is out of bounds of one or more enabled arrays */
- _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "
- "type 0x%x, indices=%p)\n"
- "\tindex=%u is out of bounds (max=%u) "
- "Element Buffer %u (size %d)",
- start, end, count, type, indices, end,
- ctx->Array.ArrayObj->_MaxElement - 1,
- ctx->Array.ElementArrayBufferObj->Name,
- ctx->Array.ElementArrayBufferObj->Size);
-
- if (0)
- dump_element_buffer(ctx, type);
-
- if (0)
- _mesa_print_arrays(ctx);
- return;
- }
- else if (0) {
- _mesa_printf("glDraw[Range]Elements"
- "(start %u, end %u, type 0x%x, count %d) ElemBuf %u\n",
- start, end, type, count,
- ctx->Array.ElementArrayBufferObj->Name);
- }
-
-#if 0
- check_draw_elements_data(ctx, count, type, indices);
-#else
- (void) check_draw_elements_data;
-#endif
-
FLUSH_CURRENT( ctx, 0 );
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
- if (!vbo_validate_shaders(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawRangeElements(bad shader)");
+ if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) {
return;
}
bind_arrays( ctx );
+ /* check for dirty state again */
if (ctx->NewState)
_mesa_update_state( ctx );
ib.count = count;
- ib.type = type;
+ ib.type = type;
ib.obj = ctx->Array.ElementArrayBufferObj;
ib.ptr = indices;
prim[0].start = 0;
prim[0].count = count;
prim[0].indexed = 1;
+ prim[0].basevertex = basevertex;
+ prim[0].num_instances = primcount;
/* Need to give special consideration to rendering a range of
* indices starting somewhere above zero. Typically the
* for the latter case elsewhere.
*/
- vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib, start, end );
+ vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib,
+ index_bounds_valid, start, end );
}
+/**
+ * Called by glDrawRangeElementsBaseVertex() in immediate mode.
+ */
+static void GLAPIENTRY
+vbo_exec_DrawRangeElementsBaseVertex(GLenum mode,
+ GLuint start, GLuint end,
+ GLsizei count, GLenum type,
+ const GLvoid *indices,
+ GLint basevertex)
+{
+ static GLuint warnCount = 0;
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx,
+ "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), start, end, count,
+ _mesa_lookup_enum_by_nr(type), indices, basevertex);
+
+ if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count,
+ type, indices, basevertex ))
+ return;
+
+ /* NOTE: It's important that 'end' is a reasonable value.
+ * in _tnl_draw_prims(), we use end to determine how many vertices
+ * to transform. If it's too large, we can unnecessarily split prims
+ * or we can read/write out of memory in several different places!
+ */
+
+ /* Catch/fix some potential user errors */
+ if (type == GL_UNSIGNED_BYTE) {
+ start = MIN2(start, 0xff);
+ end = MIN2(end, 0xff);
+ }
+ else if (type == GL_UNSIGNED_SHORT) {
+ start = MIN2(start, 0xffff);
+ end = MIN2(end, 0xffff);
+ }
+
+ if (end >= ctx->Array.ArrayObj->_MaxElement) {
+ /* the max element is out of bounds of one or more enabled arrays */
+ warnCount++;
+
+ if (warnCount < 10) {
+ _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "
+ "type 0x%x, indices=%p)\n"
+ "\tend is out of bounds (max=%u) "
+ "Element Buffer %u (size %d)\n"
+ "\tThis should probably be fixed in the application.",
+ start, end, count, type, indices,
+ ctx->Array.ArrayObj->_MaxElement - 1,
+ ctx->Array.ElementArrayBufferObj->Name,
+ (int) ctx->Array.ElementArrayBufferObj->Size);
+ }
+
+ if (0)
+ dump_element_buffer(ctx, type);
+
+ if (0)
+ _mesa_print_arrays(ctx);
+
+#ifdef DEBUG
+ /* 'end' was out of bounds, but now let's check the actual array
+ * indexes to see if any of them are out of bounds.
+ */
+ {
+ GLuint max = _mesa_max_buffer_index(ctx, count, type, indices,
+ ctx->Array.ElementArrayBufferObj);
+ if (max >= ctx->Array.ArrayObj->_MaxElement) {
+ if (warnCount < 10) {
+ _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, "
+ "count %d, type 0x%x, indices=%p)\n"
+ "\tindex=%u is out of bounds (max=%u) "
+ "Element Buffer %u (size %d)\n"
+ "\tSkipping the glDrawRangeElements() call",
+ start, end, count, type, indices, max,
+ ctx->Array.ArrayObj->_MaxElement - 1,
+ ctx->Array.ElementArrayBufferObj->Name,
+ (int) ctx->Array.ElementArrayBufferObj->Size);
+ }
+ }
+ /* XXX we could also find the min index and compare to 'start'
+ * to see if start is correct. But it's more likely to get the
+ * upper bound wrong.
+ */
+ }
+#endif
+
+ /* Set 'end' to the max possible legal value */
+ assert(ctx->Array.ArrayObj->_MaxElement >= 1);
+ end = ctx->Array.ArrayObj->_MaxElement - 1;
+ }
+ else if (0) {
+ printf("glDraw[Range]Elements{,BaseVertex}"
+ "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, "
+ "base %d\n",
+ start, end, type, count,
+ ctx->Array.ElementArrayBufferObj->Name,
+ basevertex);
+ }
+
+#if 0
+ check_draw_elements_data(ctx, count, type, indices);
+#else
+ (void) check_draw_elements_data;
+#endif
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end,
+ count, type, indices, basevertex, 1);
+}
+
+
+/**
+ * Called by glDrawRangeElements() in immediate mode.
+ */
+static void GLAPIENTRY
+vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
+ GLsizei count, GLenum type, const GLvoid *indices)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx,
+ "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n",
+ _mesa_lookup_enum_by_nr(mode), start, end, count,
+ _mesa_lookup_enum_by_nr(type), indices);
+
+ vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,
+ indices, 0);
+}
+
+
+/**
+ * Called by glDrawElements() in immediate mode.
+ */
static void GLAPIENTRY
vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
{
GET_CURRENT_CONTEXT(ctx);
- GLuint min_index = 0;
- GLuint max_index = 0;
- if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices ))
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n",
+ _mesa_lookup_enum_by_nr(mode), count,
+ _mesa_lookup_enum_by_nr(type), indices);
+
+ if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 ))
+ return;
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
+ count, type, indices, 0, 1);
+}
+
+
+/**
+ * Called by glDrawElementsBaseVertex() in immediate mode.
+ */
+static void GLAPIENTRY
+vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), count,
+ _mesa_lookup_enum_by_nr(type), indices, basevertex);
+
+ if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices,
+ basevertex ))
+ return;
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
+ count, type, indices, basevertex, 1);
+}
+
+
+/**
+ * Called by glDrawElementsInstanced() in immediate mode.
+ */
+static void GLAPIENTRY
+vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), count,
+ _mesa_lookup_enum_by_nr(type), indices, primcount);
+
+ if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices,
+ primcount))
+ return;
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
+ count, type, indices, 0, primcount);
+}
+
+
+/**
+ * Inner support for both _mesa_MultiDrawElements() and
+ * _mesa_MultiDrawRangeElements().
+ * This does the actual rendering after we've checked array indexes, etc.
+ */
+static void
+vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
+ const GLsizei *count, GLenum type,
+ const GLvoid **indices, GLsizei primcount,
+ const GLint *basevertex)
+{
+ struct vbo_context *vbo = vbo_context(ctx);
+ struct vbo_exec_context *exec = &vbo->exec;
+ struct _mesa_index_buffer ib;
+ struct _mesa_prim *prim;
+ unsigned int index_type_size = 0;
+ uintptr_t min_index_ptr, max_index_ptr;
+ GLboolean fallback = GL_FALSE;
+ int i;
+
+ if (primcount == 0)
return;
- if (!vbo_validate_shaders(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawElements(bad shader)");
+ FLUSH_CURRENT( ctx, 0 );
+
+ if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) {
return;
}
- if (ctx->Array.ElementArrayBufferObj->Name) {
- const GLvoid *map = ctx->Driver.MapBuffer(ctx,
- GL_ELEMENT_ARRAY_BUFFER_ARB,
- GL_READ_ONLY,
- ctx->Array.ElementArrayBufferObj);
+ prim = calloc(1, primcount * sizeof(*prim));
+ if (prim == NULL) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");
+ return;
+ }
- get_minmax_index(count, type, ADD_POINTERS(map, indices),
- &min_index, &max_index);
+ /* Decide if we can do this all as one set of primitives sharing the
+ * same index buffer, or if we have to reset the index pointer per
+ * primitive.
+ */
+ bind_arrays( ctx );
- ctx->Driver.UnmapBuffer(ctx,
- GL_ELEMENT_ARRAY_BUFFER_ARB,
- ctx->Array.ElementArrayBufferObj);
+ /* check for dirty state again */
+ if (ctx->NewState)
+ _mesa_update_state( ctx );
+
+ switch (type) {
+ case GL_UNSIGNED_INT:
+ index_type_size = 4;
+ break;
+ case GL_UNSIGNED_SHORT:
+ index_type_size = 2;
+ break;
+ case GL_UNSIGNED_BYTE:
+ index_type_size = 1;
+ break;
+ default:
+ assert(0);
+ }
+
+ min_index_ptr = (uintptr_t)indices[0];
+ max_index_ptr = 0;
+ for (i = 0; i < primcount; i++) {
+ min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]);
+ max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] +
+ index_type_size * count[i]);
+ }
+
+ /* Check if we can handle this thing as a bunch of index offsets from the
+ * same index pointer. If we can't, then we have to fall back to doing
+ * a draw_prims per primitive.
+ */
+ if (index_type_size != 1) {
+ for (i = 0; i < primcount; i++) {
+ if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) {
+ fallback = GL_TRUE;
+ break;
+ }
+ }
+ }
+
+ /* If the index buffer isn't in a VBO, then treating the application's
+ * subranges of the index buffer as one large index buffer may lead to
+ * us reading unmapped memory.
+ */
+ if (!_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj))
+ fallback = GL_TRUE;
+
+ if (!fallback) {
+ ib.count = (max_index_ptr - min_index_ptr) / index_type_size;
+ ib.type = type;
+ ib.obj = ctx->Array.ElementArrayBufferObj;
+ ib.ptr = (void *)min_index_ptr;
+
+ for (i = 0; i < primcount; i++) {
+ prim[i].begin = (i == 0);
+ prim[i].end = (i == primcount - 1);
+ prim[i].weak = 0;
+ prim[i].pad = 0;
+ prim[i].mode = mode;
+ prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size;
+ prim[i].count = count[i];
+ prim[i].indexed = 1;
+ prim[i].num_instances = 1;
+ if (basevertex != NULL)
+ prim[i].basevertex = basevertex[i];
+ else
+ prim[i].basevertex = 0;
+ }
+
+ vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib,
+ GL_FALSE, ~0, ~0);
+ } else {
+ /* render one prim at a time */
+ for (i = 0; i < primcount; i++) {
+ ib.count = count[i];
+ ib.type = type;
+ ib.obj = ctx->Array.ElementArrayBufferObj;
+ ib.ptr = indices[i];
+
+ prim[0].begin = 1;
+ prim[0].end = 1;
+ prim[0].weak = 0;
+ prim[0].pad = 0;
+ prim[0].mode = mode;
+ prim[0].start = 0;
+ prim[0].count = count[i];
+ prim[0].indexed = 1;
+ prim[0].num_instances = 1;
+ if (basevertex != NULL)
+ prim[0].basevertex = basevertex[i];
+ else
+ prim[0].basevertex = 0;
+
+ vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib,
+ GL_FALSE, ~0, ~0);
+ }
}
- else {
- get_minmax_index(count, type, indices, &min_index, &max_index);
+
+ free(prim);
+}
+
+
+static void GLAPIENTRY
+vbo_exec_MultiDrawElements(GLenum mode,
+ const GLsizei *count, GLenum type,
+ const GLvoid **indices,
+ GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLint i;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ for (i = 0; i < primcount; i++) {
+ if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i],
+ 0))
+ return;
}
- vbo_exec_DrawRangeElements(mode, min_index, max_index, count, type, indices);
+ vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount,
+ NULL);
}
-/***********************************************************************
- * Initialization
- */
+static void GLAPIENTRY
+vbo_exec_MultiDrawElementsBaseVertex(GLenum mode,
+ const GLsizei *count, GLenum type,
+ const GLvoid **indices,
+ GLsizei primcount,
+ const GLsizei *basevertex)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLint i;
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ for (i = 0; i < primcount; i++) {
+ if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i],
+ basevertex[i]))
+ return;
+ }
+
+ vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount,
+ basevertex);
+}
+
+
+/**
+ * Plug in the immediate-mode vertex array drawing commands into the
+ * givven vbo_exec_context object.
+ */
void
vbo_exec_array_init( struct vbo_exec_context *exec )
{
-#if 1
exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays;
exec->vtxfmt.DrawElements = vbo_exec_DrawElements;
exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements;
-#else
- exec->vtxfmt.DrawArrays = _mesa_noop_DrawArrays;
- exec->vtxfmt.DrawElements = _mesa_noop_DrawElements;
- exec->vtxfmt.DrawRangeElements = _mesa_noop_DrawRangeElements;
-#endif
+ exec->vtxfmt.MultiDrawElementsEXT = vbo_exec_MultiDrawElements;
+ exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex;
+ exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex;
+ exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex;
+ exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced;
+ exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced;
}
}
-/* This API entrypoint is not ordinarily used */
+
+/**
+ * The following functions are only used for OpenGL ES 1/2 support.
+ * And some aren't even supported (yet) in ES 1/2.
+ */
+
+
void GLAPIENTRY
_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count)
{
}
-/* This API entrypoint is not ordinarily used */
void GLAPIENTRY
_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
}
-/* This API entrypoint is not ordinarily used */
+void GLAPIENTRY
+_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex);
+}
+
+
void GLAPIENTRY
_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
GLenum type, const GLvoid *indices)
{
vbo_exec_DrawRangeElements(mode, start, end, count, type, indices);
}
+
+
+void GLAPIENTRY
+_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,
+ GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,
+ indices, basevertex);
+}
+
+
+void GLAPIENTRY
+_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type,
+ const GLvoid **indices, GLsizei primcount)
+{
+ vbo_exec_MultiDrawElements(mode, count, type, indices, primcount);
+}
+
+
+void GLAPIENTRY
+_mesa_MultiDrawElementsBaseVertex(GLenum mode,
+ const GLsizei *count, GLenum type,
+ const GLvoid **indices, GLsizei primcount,
+ const GLint *basevertex)
+{
+ vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices,
+ primcount, basevertex);
+}
projects / mesa.git / blobdiff