#include "pixel.h"
#endif
#include "shader/program.h"
+#include "shader/prog_parameter.h"
#include "state.h"
#include "stencil.h"
#include "texenvprogram.h"
#include "texobj.h"
#include "texstate.h"
+#include "viewport.h"
static void
/**
- * Update state dependent on vertex arrays.
+ * Compute the index of the last array element that can be safely accessed
+ * in a vertex array. We can really only do this when the array lives in
+ * a VBO.
+ * The array->_MaxElement field will be updated.
+ * Later in glDrawArrays/Elements/etc we can do some bounds checking.
+ */
+static void
+compute_max_element(struct gl_client_array *array)
+{
+ assert(array->Enabled);
+ if (array->BufferObj->Name) {
+ /* Compute the max element we can access in the VBO without going
+ * out of bounds.
+ */
+ array->_MaxElement = ((GLsizeiptrARB) array->BufferObj->Size
+ - (GLsizeiptrARB) array->Ptr + array->StrideB
+ - array->_ElementSize) / array->StrideB;
+ }
+ else {
+ /* user-space array, no idea how big it is */
+ array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
+ }
+}
+
+
+/**
+ * Helper for update_arrays().
+ * \return min(current min, array->_MaxElement).
+ */
+static GLuint
+update_min(GLuint min, struct gl_client_array *array)
+{
+ compute_max_element(array);
+ return MIN2(min, array->_MaxElement);
+}
+
+
+/**
+ * Update ctx->Array._MaxElement (the max legal index into all enabled arrays).
+ * Need to do this upon new array state or new buffer object state.
*/
static void
update_arrays( GLcontext *ctx )
{
- GLuint i, min;
+ struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
+ GLuint i, min = ~0;
/* find min of _MaxElement values for all enabled arrays */
/* 0 */
if (ctx->VertexProgram._Current
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) {
- min = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS]._MaxElement;
+ && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]);
}
- else if (ctx->Array.ArrayObj->Vertex.Enabled) {
- min = ctx->Array.ArrayObj->Vertex._MaxElement;
- }
- else {
- /* can't draw anything without vertex positions! */
- min = 0;
+ else if (arrayObj->Vertex.Enabled) {
+ min = update_min(min, &arrayObj->Vertex);
}
/* 1 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]);
}
/* no conventional vertex weight array */
/* 2 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]);
}
- else if (ctx->Array.ArrayObj->Normal.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->Normal._MaxElement);
+ else if (arrayObj->Normal.Enabled) {
+ min = update_min(min, &arrayObj->Normal);
}
/* 3 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]);
}
- else if (ctx->Array.ArrayObj->Color.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->Color._MaxElement);
+ else if (arrayObj->Color.Enabled) {
+ min = update_min(min, &arrayObj->Color);
}
/* 4 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]);
}
- else if (ctx->Array.ArrayObj->SecondaryColor.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->SecondaryColor._MaxElement);
+ else if (arrayObj->SecondaryColor.Enabled) {
+ min = update_min(min, &arrayObj->SecondaryColor);
}
/* 5 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]);
}
- else if (ctx->Array.ArrayObj->FogCoord.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->FogCoord._MaxElement);
+ else if (arrayObj->FogCoord.Enabled) {
+ min = update_min(min, &arrayObj->FogCoord);
}
/* 6 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]);
}
- else if (ctx->Array.ArrayObj->Index.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->Index._MaxElement);
+ else if (arrayObj->Index.Enabled) {
+ min = update_min(min, &arrayObj->Index);
}
-
/* 7 */
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]._MaxElement);
+ && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]);
}
/* 8..15 */
for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) {
if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[i].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[i]._MaxElement);
+ && arrayObj->VertexAttrib[i].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[i]);
}
else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits
- && ctx->Array.ArrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->TexCoord[i - VERT_ATTRIB_TEX0]._MaxElement);
+ && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
+ min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]);
}
}
/* 16..31 */
if (ctx->VertexProgram._Current) {
- for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) {
- if (ctx->Array.ArrayObj->VertexAttrib[i].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[i]._MaxElement);
+ for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) {
+ if (arrayObj->VertexAttrib[i].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[i]);
}
}
}
- if (ctx->Array.ArrayObj->EdgeFlag.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->EdgeFlag._MaxElement);
+ if (arrayObj->EdgeFlag.Enabled) {
+ min = update_min(min, &arrayObj->EdgeFlag);
}
/* _MaxElement is one past the last legal array element */
- ctx->Array._MaxElement = min;
+ arrayObj->_MaxElement = min;
}
+/**
+ * Update the following fields:
+ * ctx->VertexProgram._Enabled
+ * ctx->FragmentProgram._Enabled
+ * ctx->ATIFragmentShader._Enabled
+ * This needs to be done before texture state validation.
+ */
static void
-update_program(GLcontext *ctx)
+update_program_enables(GLcontext *ctx)
{
- const struct gl_shader_program *shProg = ctx->Shader.CurrentProgram;
- const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
- const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
-
/* These _Enabled flags indicate if the program is enabled AND valid. */
ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled
&& ctx->VertexProgram.Current->Base.Instructions;
&& ctx->FragmentProgram.Current->Base.Instructions;
ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled
&& ctx->ATIFragmentShader.Current->Instructions[0];
+}
+
+
+/**
+ * Update vertex/fragment program state. In particular, update these fields:
+ * ctx->VertexProgram._Current
+ * ctx->VertexProgram._TnlProgram,
+ * These point to the highest priority enabled vertex/fragment program or are
+ * NULL if fixed-function processing is to be done.
+ *
+ * This function needs to be called after texture state validation in case
+ * we're generating a fragment program from fixed-function texture state.
+ *
+ * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex
+ * or fragment program is being used.
+ */
+static GLbitfield
+update_program(GLcontext *ctx)
+{
+ const struct gl_shader_program *shProg = ctx->Shader.CurrentProgram;
+ const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
+ const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
+ GLbitfield new_state = 0x0;
/*
* Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current
_mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
}
- /* XXX: get rid of _Active flag.
- */
-#if 1
- ctx->FragmentProgram._Active = ctx->FragmentProgram._Enabled;
- if (ctx->FragmentProgram._MaintainTexEnvProgram &&
- !ctx->FragmentProgram._Enabled) {
- if (ctx->FragmentProgram._UseTexEnvProgram)
- ctx->FragmentProgram._Active = GL_TRUE;
- }
-#endif
-
/* Let the driver know what's happening:
*/
- if (ctx->FragmentProgram._Current != prevFP && ctx->Driver.BindProgram) {
- ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
- (struct gl_program *) ctx->FragmentProgram._Current);
+ if (ctx->FragmentProgram._Current != prevFP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
+ (struct gl_program *) ctx->FragmentProgram._Current);
+ }
}
- if (ctx->VertexProgram._Current != prevVP && ctx->Driver.BindProgram) {
- ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
- (struct gl_program *) ctx->VertexProgram._Current);
+ if (ctx->VertexProgram._Current != prevVP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+ (struct gl_program *) ctx->VertexProgram._Current);
+ }
+ }
+
+ return new_state;
+}
+
+
+/**
+ * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0.
+ */
+static GLbitfield
+update_program_constants(GLcontext *ctx)
+{
+ GLbitfield new_state = 0x0;
+
+ if (ctx->FragmentProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->FragmentProgram._Current->Base.Parameters;
+ if (params && params->StateFlags & ctx->NewState) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
}
+
+ if (ctx->VertexProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->VertexProgram._Current->Base.Parameters;
+ if (params && params->StateFlags & ctx->NewState) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
+ }
+
+ return new_state;
}
+
+
static void
update_viewport_matrix(GLcontext *ctx)
{
{
GLbitfield new_state = ctx->NewState;
GLbitfield prog_flags = _NEW_PROGRAM;
+ GLbitfield new_prog_state = 0x0;
if (new_state == _NEW_CURRENT_ATTRIB)
goto out;
if (MESA_VERBOSE & VERBOSE_STATE)
_mesa_print_state("_mesa_update_state", new_state);
+ /* Determine which state flags effect vertex/fragment program state */
+ if (ctx->FragmentProgram._MaintainTexEnvProgram) {
+ prog_flags |= (_NEW_TEXTURE | _NEW_FOG | _DD_NEW_SEPARATE_SPECULAR |
+ _NEW_ARRAY);
+ }
+ if (ctx->VertexProgram._MaintainTnlProgram) {
+ prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
+ _NEW_TRANSFORM | _NEW_POINT |
+ _NEW_FOG | _NEW_LIGHT |
+ _MESA_NEW_NEED_EYE_COORDS);
+ }
+
+ /*
+ * Now update derived state info
+ */
+
+ if (new_state & prog_flags)
+ update_program_enables( ctx );
+
if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
_mesa_update_modelview_project( ctx, new_state );
if (new_state & _NEW_LIGHT)
_mesa_update_lighting( ctx );
- if (new_state & _NEW_STENCIL)
+ if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
_mesa_update_stencil( ctx );
#if FEATURE_pixel_transfer
- if (new_state & _IMAGE_NEW_TRANSFER_STATE)
+ if (new_state & _MESA_NEW_TRANSFER_STATE)
_mesa_update_pixel( ctx, new_state );
#endif
if (new_state & _DD_NEW_SEPARATE_SPECULAR)
update_separate_specular( ctx );
- if (new_state & (_NEW_ARRAY | _NEW_PROGRAM))
+ if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
update_arrays( ctx );
if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
if (new_state & _MESA_NEW_NEED_EYE_COORDS)
_mesa_update_tnl_spaces( ctx, new_state );
- if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE_MATRIX | _NEW_LIGHT |
- _NEW_RENDERMODE |
- _NEW_TEXTURE | _NEW_FOG | _DD_NEW_SEPARATE_SPECULAR);
- }
- if (ctx->VertexProgram._MaintainTnlProgram) {
- prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
- _NEW_RENDERMODE |
- _NEW_TRANSFORM | _NEW_POINT |
- _NEW_FOG | _NEW_LIGHT |
- _MESA_NEW_NEED_EYE_COORDS);
+ if (new_state & prog_flags) {
+ /* When we generate programs from fixed-function vertex/fragment state
+ * this call may generate/bind a new program. If so, we need to
+ * propogate the _NEW_PROGRAM flag to the driver.
+ */
+ new_prog_state |= update_program( ctx );
}
- if (new_state & prog_flags)
- update_program( ctx );
+ out:
+ new_prog_state |= update_program_constants(ctx);
/*
* Give the driver a chance to act upon the new_state flags.
* Set ctx->NewState to zero to avoid recursion if
* Driver.UpdateState() has to call FLUSH_VERTICES(). (fixed?)
*/
- out:
- new_state = ctx->NewState;
+ new_state = ctx->NewState | new_prog_state;
ctx->NewState = 0;
ctx->Driver.UpdateState(ctx, new_state);
ctx->Array.NewState = 0;
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