#include "viewport.h"
static void
-set_viewport_no_notify(struct gl_context *ctx, unsigned idx,
- GLfloat x, GLfloat y,
- GLfloat width, GLfloat height)
+clamp_viewport(struct gl_context *ctx, GLfloat *x, GLfloat *y,
+ GLfloat *width, GLfloat *height)
{
- FLUSH_VERTICES(ctx, ctx->DriverFlags.NewViewport ? 0 : _NEW_VIEWPORT);
- ctx->NewDriverState |= ctx->DriverFlags.NewViewport;
-
/* clamp width and height to the implementation dependent range */
- width = MIN2(width, (GLfloat) ctx->Const.MaxViewportWidth);
- height = MIN2(height, (GLfloat) ctx->Const.MaxViewportHeight);
+ *width = MIN2(*width, (GLfloat) ctx->Const.MaxViewportWidth);
+ *height = MIN2(*height, (GLfloat) ctx->Const.MaxViewportHeight);
/* The GL_ARB_viewport_array spec says:
*
* determined by calling GetFloatv with the symbolic constant
* VIEWPORT_BOUNDS_RANGE (see section 6.1)."
*/
- 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->Const.ViewportBounds.Min, ctx->Const.ViewportBounds.Max);
+ if (_mesa_has_ARB_viewport_array(ctx) ||
+ _mesa_has_OES_viewport_array(ctx)) {
+ *x = CLAMP(*x,
+ ctx->Const.ViewportBounds.Min, ctx->Const.ViewportBounds.Max);
+ *y = CLAMP(*y,
+ ctx->Const.ViewportBounds.Min, ctx->Const.ViewportBounds.Max);
}
+}
+static void
+set_viewport_no_notify(struct gl_context *ctx, unsigned idx,
+ GLfloat x, GLfloat y,
+ GLfloat width, GLfloat height)
+{
if (ctx->ViewportArray[idx].X == x &&
ctx->ViewportArray[idx].Width == width &&
ctx->ViewportArray[idx].Y == y &&
ctx->ViewportArray[idx].Height == height)
return;
+ FLUSH_VERTICES(ctx, ctx->DriverFlags.NewViewport ? 0 : _NEW_VIEWPORT);
+ ctx->NewDriverState |= ctx->DriverFlags.NewViewport;
+
ctx->ViewportArray[idx].X = x;
ctx->ViewportArray[idx].Width = width;
ctx->ViewportArray[idx].Y = y;
GLdouble Near, Far; /**< Depth buffer range */
};
+static void
+viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei width,
+ GLsizei height)
+{
+ struct gl_viewport_inputs input = { x, y, width, height };
+
+ /* Clamp the viewport to the implementation dependent values. */
+ clamp_viewport(ctx, &input.X, &input.Y, &input.Width, &input.Height);
+
+ /* The GL_ARB_viewport_array spec says:
+ *
+ * "Viewport sets the parameters for all viewports to the same values
+ * and is equivalent (assuming no errors are generated) to:
+ *
+ * for (uint i = 0; i < MAX_VIEWPORTS; i++)
+ * ViewportIndexedf(i, 1, (float)x, (float)y, (float)w, (float)h);"
+ *
+ * Set all of the viewports supported by the implementation, but only
+ * signal the driver once at the end.
+ */
+ for (unsigned i = 0; i < ctx->Const.MaxViewports; i++)
+ set_viewport_no_notify(ctx, i, input.X, input.Y, input.Width, input.Height);
+
+ if (ctx->Driver.Viewport)
+ ctx->Driver.Viewport(ctx);
+}
+
/**
* Set the viewport.
* \sa Called via glViewport() or display list execution.
* Flushes the vertices and calls _mesa_set_viewport() with the given
* parameters.
*/
+void GLAPIENTRY
+_mesa_Viewport_no_error(GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ viewport(ctx, x, y, width, height);
+}
+
void GLAPIENTRY
_mesa_Viewport(GLint x, GLint y, GLsizei width, GLsizei height)
{
- unsigned i;
GET_CURRENT_CONTEXT(ctx);
- FLUSH_VERTICES(ctx, 0);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glViewport %d %d %d %d\n", x, y, width, height);
return;
}
- /* The GL_ARB_viewport_array spec says:
- *
- * "Viewport sets the parameters for all viewports to the same values
- * and is equivalent (assuming no errors are generated) to:
- *
- * for (uint i = 0; i < MAX_VIEWPORTS; i++)
- * ViewportIndexedf(i, 1, (float)x, (float)y, (float)w, (float)h);"
- *
- * Set all of the viewports supported by the implementation, but only
- * signal the driver once at the end.
- */
- for (i = 0; i < ctx->Const.MaxViewports; i++)
- set_viewport_no_notify(ctx, i, x, y, width, height);
-
- if (ctx->Driver.Viewport) {
- /* Many drivers will use this call to check for window size changes
- * and reallocate the z/stencil/accum/etc buffers if needed.
- */
- ctx->Driver.Viewport(ctx);
- }
+ viewport(ctx, x, y, width, height);
}
_mesa_set_viewport(struct gl_context *ctx, unsigned idx, GLfloat x, GLfloat y,
GLfloat width, GLfloat height)
{
+ clamp_viewport(ctx, &x, &y, &width, &height);
set_viewport_no_notify(ctx, idx, x, y, width, height);
- if (ctx->Driver.Viewport) {
- /* Many drivers will use this call to check for window size changes
- * and reallocate the z/stencil/accum/etc buffers if needed.
- */
+ if (ctx->Driver.Viewport)
ctx->Driver.Viewport(ctx);
+}
+
+static void
+viewport_array(struct gl_context *ctx, GLuint first, GLsizei count,
+ struct gl_viewport_inputs *inputs)
+{
+ for (GLsizei i = 0; i < count; i++) {
+ clamp_viewport(ctx, &inputs[i].X, &inputs[i].Y,
+ &inputs[i].Width, &inputs[i].Height);
+
+ set_viewport_no_notify(ctx, i + first, inputs[i].X, inputs[i].Y,
+ inputs[i].Width, inputs[i].Height);
}
+
+ if (ctx->Driver.Viewport)
+ ctx->Driver.Viewport(ctx);
+}
+
+void GLAPIENTRY
+_mesa_ViewportArrayv_no_error(GLuint first, GLsizei count, const GLfloat *v)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ struct gl_viewport_inputs *p = (struct gl_viewport_inputs *)v;
+ viewport_array(ctx, first, count, p);
}
void GLAPIENTRY
_mesa_ViewportArrayv(GLuint first, GLsizei count, const GLfloat *v)
{
int i;
- const struct gl_viewport_inputs *const p = (struct gl_viewport_inputs *) v;
+ struct gl_viewport_inputs *p = (struct gl_viewport_inputs *)v;
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_API)
}
}
- for (i = 0; i < count; i++)
- set_viewport_no_notify(ctx, i + first,
- p[i].X, p[i].Y,
- p[i].Width, p[i].Height);
-
- if (ctx->Driver.Viewport)
- ctx->Driver.Viewport(ctx);
+ viewport_array(ctx, first, count, p);
}
static void
_mesa_set_viewport(ctx, index, x, y, w, h);
}
+void GLAPIENTRY
+_mesa_ViewportIndexedf_no_error(GLuint index, GLfloat x, GLfloat y,
+ GLfloat w, GLfloat h)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_set_viewport(ctx, index, x, y, w, h);
+}
+
void GLAPIENTRY
_mesa_ViewportIndexedf(GLuint index, GLfloat x, GLfloat y,
GLfloat w, GLfloat h)
viewport_indexed_err(ctx, index, x, y, w, h, "glViewportIndexedf");
}
+void GLAPIENTRY
+_mesa_ViewportIndexedfv_no_error(GLuint index, const GLfloat *v)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_set_viewport(ctx, index, v[0], v[1], v[2], v[3]);
+}
+
void GLAPIENTRY
_mesa_ViewportIndexedfv(GLuint index, const GLfloat *v)
{
unsigned i;
GET_CURRENT_CONTEXT(ctx);
- FLUSH_VERTICES(ctx, 0);
-
if (MESA_VERBOSE&VERBOSE_API)
_mesa_debug(ctx, "glDepthRange %f %f\n", nearval, farval);
* \param v pointer to memory containing
* GLclampd near and far clip-plane values
*/
+static ALWAYS_INLINE void
+depth_range_arrayv(struct gl_context *ctx, GLuint first, GLsizei count,
+ const struct gl_depthrange_inputs *const inputs)
+{
+ for (GLsizei i = 0; i < count; i++)
+ set_depth_range_no_notify(ctx, i + first, inputs[i].Near, inputs[i].Far);
+
+ if (ctx->Driver.DepthRange)
+ ctx->Driver.DepthRange(ctx);
+}
+
+void GLAPIENTRY
+_mesa_DepthRangeArrayv_no_error(GLuint first, GLsizei count, const GLclampd *v)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ const struct gl_depthrange_inputs *const p =
+ (struct gl_depthrange_inputs *)v;
+ depth_range_arrayv(ctx, first, count, p);
+}
+
void GLAPIENTRY
_mesa_DepthRangeArrayv(GLuint first, GLsizei count, const GLclampd *v)
{
- int i;
const struct gl_depthrange_inputs *const p =
(struct gl_depthrange_inputs *) v;
GET_CURRENT_CONTEXT(ctx);
return;
}
- for (i = 0; i < count; i++)
- set_depth_range_no_notify(ctx, i + first, p[i].Near, p[i].Far);
-
- if (ctx->Driver.DepthRange)
- ctx->Driver.DepthRange(ctx);
+ depth_range_arrayv(ctx, first, count, p);
}
void GLAPIENTRY
* \param farval specifies the Z buffer value which should correspond to
* the far clip plane
*/
+void GLAPIENTRY
+_mesa_DepthRangeIndexed_no_error(GLuint index, GLclampd nearval,
+ GLclampd farval)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_set_depth_range(ctx, index, nearval, farval);
+}
+
+
void GLAPIENTRY
_mesa_DepthRangeIndexed(GLuint index, GLclampd nearval, GLclampd farval)
{
ctx->ViewportArray[i].Height = 0;
ctx->ViewportArray[i].Near = 0.0;
ctx->ViewportArray[i].Far = 1.0;
+ ctx->ViewportArray[i].SwizzleX = GL_VIEWPORT_SWIZZLE_POSITIVE_X_NV;
+ ctx->ViewportArray[i].SwizzleY = GL_VIEWPORT_SWIZZLE_POSITIVE_Y_NV;
+ ctx->ViewportArray[i].SwizzleZ = GL_VIEWPORT_SWIZZLE_POSITIVE_Z_NV;
+ ctx->ViewportArray[i].SwizzleW = GL_VIEWPORT_SWIZZLE_POSITIVE_W_NV;
}
+
+ ctx->SubpixelPrecisionBias[0] = 0;
+ ctx->SubpixelPrecisionBias[1] = 0;
}
-static void
-clip_control(struct gl_context *ctx, GLenum origin, GLenum depth)
+static ALWAYS_INLINE void
+clip_control(struct gl_context *ctx, GLenum origin, GLenum depth, bool no_error)
{
if (ctx->Transform.ClipOrigin == origin &&
ctx->Transform.ClipDepthMode == depth)
return;
+ if (!no_error &&
+ origin != GL_LOWER_LEFT && origin != GL_UPPER_LEFT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClipControl");
+ return;
+ }
+
+ if (!no_error &&
+ depth != GL_NEGATIVE_ONE_TO_ONE && depth != GL_ZERO_TO_ONE) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClipControl");
+ return;
+ }
+
/* Affects transform state and the viewport transform */
FLUSH_VERTICES(ctx, ctx->DriverFlags.NewClipControl ? 0 :
_NEW_TRANSFORM | _NEW_VIEWPORT);
_mesa_ClipControl_no_error(GLenum origin, GLenum depth)
{
GET_CURRENT_CONTEXT(ctx);
- clip_control(ctx, origin, depth);
+ clip_control(ctx, origin, depth, true);
}
return;
}
- if (origin != GL_LOWER_LEFT && origin != GL_UPPER_LEFT) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glClipControl");
- return;
- }
-
- if (depth != GL_NEGATIVE_ONE_TO_ONE && depth != GL_ZERO_TO_ONE) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glClipControl");
- return;
- }
-
- clip_control(ctx, origin, depth);
+ clip_control(ctx, origin, depth, false);
}
/**
translate[2] = n;
}
}
+
+
+static void
+subpixel_precision_bias(struct gl_context *ctx, GLuint xbits, GLuint ybits)
+{
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glSubpixelPrecisionBiasNV(%u, %u)\n", xbits, ybits);
+
+ FLUSH_VERTICES(ctx, 0);
+
+ ctx->SubpixelPrecisionBias[0] = xbits;
+ ctx->SubpixelPrecisionBias[1] = ybits;
+
+ ctx->NewDriverState |=
+ ctx->DriverFlags.NewNvConservativeRasterizationParams;
+}
+
+void GLAPIENTRY
+_mesa_SubpixelPrecisionBiasNV_no_error(GLuint xbits, GLuint ybits)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glSubpixelPrecisionBiasNV(%u, %u)\n", xbits, ybits);
+
+ subpixel_precision_bias(ctx, xbits, ybits);
+}
+
+void GLAPIENTRY
+_mesa_SubpixelPrecisionBiasNV(GLuint xbits, GLuint ybits)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glSubpixelPrecisionBiasNV(%u, %u)\n", xbits, ybits);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.NV_conservative_raster) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glSubpixelPrecisionBiasNV not supported");
+ return;
+ }
+
+ if (xbits > ctx->Const.MaxSubpixelPrecisionBiasBits) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glSubpixelPrecisionBiasNV");
+ return;
+ }
+
+ if (ybits > ctx->Const.MaxSubpixelPrecisionBiasBits) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glSubpixelPrecisionBiasNV");
+ return;
+ }
+
+ subpixel_precision_bias(ctx, xbits, ybits);
+}
+
+static void
+set_viewport_swizzle(struct gl_context *ctx, GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew)
+{
+ struct gl_viewport_attrib *viewport = &ctx->ViewportArray[index];
+ if (viewport->SwizzleX == swizzlex &&
+ viewport->SwizzleY == swizzley &&
+ viewport->SwizzleZ == swizzlez &&
+ viewport->SwizzleW == swizzlew)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_VIEWPORT);
+ ctx->NewDriverState |= ctx->DriverFlags.NewViewport;
+
+ viewport->SwizzleX = swizzlex;
+ viewport->SwizzleY = swizzley;
+ viewport->SwizzleZ = swizzlez;
+ viewport->SwizzleW = swizzlew;
+}
+
+void GLAPIENTRY
+_mesa_ViewportSwizzleNV_no_error(GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glViewportSwizzleNV(%x, %x, %x, %x)\n",
+ swizzlex, swizzley, swizzlez, swizzlew);
+
+ set_viewport_swizzle(ctx, index, swizzlex, swizzley, swizzlez, swizzlew);
+}
+
+static bool
+verify_viewport_swizzle(GLenum swizzle)
+{
+ return swizzle >= GL_VIEWPORT_SWIZZLE_POSITIVE_X_NV &&
+ swizzle <= GL_VIEWPORT_SWIZZLE_NEGATIVE_W_NV;
+}
+
+void GLAPIENTRY
+_mesa_ViewportSwizzleNV(GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glViewportSwizzleNV(%x, %x, %x, %x)\n",
+ swizzlex, swizzley, swizzlez, swizzlew);
+
+ if (!ctx->Extensions.NV_viewport_swizzle) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glViewportSwizzleNV not supported");
+ return;
+ }
+
+ if (index >= ctx->Const.MaxViewports) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glViewportSwizzleNV: index (%d) >= MaxViewports (%d)",
+ index, ctx->Const.MaxViewports);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzlex)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzlex=%x)", swizzlex);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzley)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzley=%x)", swizzley);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzlez)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzlez=%x)", swizzlez);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzlew)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzlew=%x)", swizzlew);
+ return;
+ }
+
+ set_viewport_swizzle(ctx, index, swizzlex, swizzley, swizzlez, swizzlew);
+}
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