#include "context.h"
+#include "enums.h"
#include "macros.h"
#include "mtypes.h"
#include "viewport.h"
GLfloat x, GLfloat y,
GLfloat width, GLfloat height)
{
- double scale[3], translate[3];
-
/* clamp width and height to the implementation dependent range */
width = MIN2(width, (GLfloat) ctx->Const.MaxViewportWidth);
height = MIN2(height, (GLfloat) ctx->Const.MaxViewportHeight);
* determined by calling GetFloatv with the symbolic constant
* VIEWPORT_BOUNDS_RANGE (see section 6.1)."
*/
- if (ctx->Extensions.ARB_viewport_array) {
+ if (ctx->Extensions.ARB_viewport_array ||
+ (ctx->Extensions.OES_viewport_array &&
+ _mesa_is_gles31(ctx))) {
x = CLAMP(x,
ctx->Const.ViewportBounds.Min, ctx->Const.ViewportBounds.Max);
y = CLAMP(y,
ctx->ViewportArray[idx].Y = y;
ctx->ViewportArray[idx].Height = height;
ctx->NewState |= _NEW_VIEWPORT;
-
-#if 1
- /* XXX remove this someday. Currently the DRI drivers rely on
- * the WindowMap matrix being up to date in the driver's Viewport
- * and DepthRange functions.
- */
- _mesa_get_viewport_xform(ctx, idx, scale, translate);
- _math_matrix_viewport(&ctx->ViewportArray[idx]._WindowMap,
- scale, translate, ctx->DrawBuffer->_DepthMaxF);
-#endif
}
struct gl_viewport_inputs {
/**
- * Set new viewport parameters and update derived state (the _WindowMap
- * matrix). Usually called from _mesa_Viewport().
+ * Set new viewport parameters and update derived state.
+ * Usually called from _mesa_Viewport().
*
* \param ctx GL context.
* \param idx Index of the viewport to be updated.
set_depth_range_no_notify(struct gl_context *ctx, unsigned idx,
GLclampd nearval, GLclampd farval)
{
- double scale[3], translate[3];
-
if (ctx->ViewportArray[idx].Near == nearval &&
ctx->ViewportArray[idx].Far == farval)
return;
ctx->ViewportArray[idx].Near = CLAMP(nearval, 0.0, 1.0);
ctx->ViewportArray[idx].Far = CLAMP(farval, 0.0, 1.0);
ctx->NewState |= _NEW_VIEWPORT;
-
-#if 1
- /* XXX remove this someday. Currently the DRI drivers rely on
- * the WindowMap matrix being up to date in the driver's Viewport
- * and DepthRange functions.
- */
- _mesa_get_viewport_xform(ctx, idx, scale, translate);
- _math_matrix_viewport(&ctx->ViewportArray[idx]._WindowMap,
- scale, translate, ctx->DrawBuffer->_DepthMaxF);
-#endif
}
void
ctx->Driver.DepthRange(ctx);
}
+void GLAPIENTRY
+_mesa_DepthRangeArrayfvOES(GLuint first, GLsizei count, const GLfloat *v)
+{
+ int i;
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glDepthRangeArrayfv %d %d\n", first, count);
+
+ if ((first + count) > ctx->Const.MaxViewports) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDepthRangeArrayfv: first (%d) + count (%d) >= MaxViewports (%d)",
+ first, count, ctx->Const.MaxViewports);
+ return;
+ }
+
+ for (i = 0; i < count; i++)
+ set_depth_range_no_notify(ctx, i + first, v[i * 2], v[i * 2 + 1]);
+
+ if (ctx->Driver.DepthRange)
+ ctx->Driver.DepthRange(ctx);
+}
+
/**
* Update a single DepthRange
*
_mesa_set_depth_range(ctx, index, nearval, farval);
}
+void GLAPIENTRY
+_mesa_DepthRangeIndexedfOES(GLuint index, GLfloat nearval, GLfloat farval)
+{
+ _mesa_DepthRangeIndexed(index, nearval, farval);
+}
+
/**
* Initialize the context viewport attribute group.
* \param ctx the GL context.
*/
void _mesa_init_viewport(struct gl_context *ctx)
{
- GLfloat depthMax = 65535.0F; /* sorf of arbitrary */
unsigned i;
+ ctx->Transform.ClipOrigin = GL_LOWER_LEFT;
+ ctx->Transform.ClipDepthMode = GL_NEGATIVE_ONE_TO_ONE;
+
/* Note: ctx->Const.MaxViewports may not have been set by the driver yet,
* so just initialize all of them.
*/
for (i = 0; i < MAX_VIEWPORTS; i++) {
- double scale[3], translate[3];
-
/* Viewport group */
ctx->ViewportArray[i].X = 0;
ctx->ViewportArray[i].Y = 0;
ctx->ViewportArray[i].Height = 0;
ctx->ViewportArray[i].Near = 0.0;
ctx->ViewportArray[i].Far = 1.0;
- _math_matrix_ctr(&ctx->ViewportArray[i]._WindowMap);
-
- _mesa_get_viewport_xform(ctx, i, scale, translate);
- _math_matrix_viewport(&ctx->ViewportArray[i]._WindowMap,
- scale, translate, depthMax);
}
}
-/**
- * Free the context viewport attribute group data.
- * \param ctx the GL context.
- */
-void _mesa_free_viewport_data(struct gl_context *ctx)
+extern void GLAPIENTRY
+_mesa_ClipControl(GLenum origin, GLenum depth)
{
- unsigned i;
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glClipControl(%s, %s)\n",
+ _mesa_enum_to_string(origin),
+ _mesa_enum_to_string(depth));
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.ARB_clip_control) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glClipControl");
+ return;
+ }
+
+ if (origin != GL_LOWER_LEFT && origin != GL_UPPER_LEFT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClipControl");
+ return;
+ }
- for (i = 0; i < MAX_VIEWPORTS; i++)
- _math_matrix_dtr(&ctx->ViewportArray[i]._WindowMap);
+ if (depth != GL_NEGATIVE_ONE_TO_ONE && depth != GL_ZERO_TO_ONE) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClipControl");
+ return;
+ }
+
+ if (ctx->Transform.ClipOrigin == origin &&
+ ctx->Transform.ClipDepthMode == depth)
+ return;
+
+ /* Affects transform state and the viewport transform */
+ FLUSH_VERTICES(ctx, _NEW_TRANSFORM | _NEW_VIEWPORT);
+
+ if (ctx->Transform.ClipOrigin != origin) {
+ ctx->Transform.ClipOrigin = origin;
+
+ /* Affects the winding order of the front face. */
+ ctx->NewState |= _NEW_POLYGON;
+
+ if (ctx->Driver.FrontFace)
+ ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
+ }
+
+ if (ctx->Transform.ClipDepthMode != depth) {
+ ctx->Transform.ClipDepthMode = depth;
+
+ if (ctx->Driver.DepthRange)
+ ctx->Driver.DepthRange(ctx);
+ }
}
/**
*/
void
_mesa_get_viewport_xform(struct gl_context *ctx, unsigned i,
- double scale[3], double translate[3])
+ float scale[3], float translate[3])
{
- double x = ctx->ViewportArray[i].X;
- double y = ctx->ViewportArray[i].Y;
- double half_width = 0.5*ctx->ViewportArray[i].Width;
- double half_height = 0.5*ctx->ViewportArray[i].Height;
+ float x = ctx->ViewportArray[i].X;
+ float y = ctx->ViewportArray[i].Y;
+ float half_width = 0.5f * ctx->ViewportArray[i].Width;
+ float half_height = 0.5f * ctx->ViewportArray[i].Height;
double n = ctx->ViewportArray[i].Near;
double f = ctx->ViewportArray[i].Far;
scale[0] = half_width;
translate[0] = half_width + x;
- scale[1] = half_height;
+ if (ctx->Transform.ClipOrigin == GL_UPPER_LEFT) {
+ scale[1] = -half_height;
+ } else {
+ scale[1] = half_height;
+ }
translate[1] = half_height + y;
- scale[2] = 0.5*(f - n);
- translate[2] = 0.5*(n + f);
+
+ if (ctx->Transform.ClipDepthMode == GL_NEGATIVE_ONE_TO_ONE) {
+ scale[2] = 0.5 * (f - n);
+ translate[2] = 0.5 * (n + f);
+ } else {
+ scale[2] = f - n;
+ translate[2] = n;
+ }
}
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