From 62efc4ba3eb53ca75abbe9b52feabe49a5fd56b5 Mon Sep 17 00:00:00 2001 From: Aapo Tahkola Date: Thu, 18 Jan 2007 05:56:13 +0200 Subject: [PATCH] support as much of GL_EXT_stencil_two_side as we can. untested. --- src/mesa/drivers/dri/r300/r300_context.c | 8 ++++++ src/mesa/drivers/dri/r300/r300_render.c | 4 +++ src/mesa/drivers/dri/r300/r300_state.c | 27 +++++++++++++++------ src/mesa/drivers/dri/radeon/radeon_screen.c | 8 +++++- 4 files changed, 38 insertions(+), 9 deletions(-) diff --git a/src/mesa/drivers/dri/r300/r300_context.c b/src/mesa/drivers/dri/r300/r300_context.c index 54eb081d055..71402761ae5 100644 --- a/src/mesa/drivers/dri/r300/r300_context.c +++ b/src/mesa/drivers/dri/r300/r300_context.c @@ -73,6 +73,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. int future_hw_tcl_on=1; int hw_tcl_on=1; +#define need_GL_EXT_stencil_two_side #define need_GL_ARB_multisample #define need_GL_ARB_texture_compression #define need_GL_ARB_vertex_buffer_object @@ -126,6 +127,10 @@ const struct dri_extension card_extensions[] = { {NULL, NULL} }; +const struct dri_extension stencil_two_side[] = { + {"GL_EXT_stencil_two_side", GL_EXT_stencil_two_side_functions}, +}; + extern struct tnl_pipeline_stage _r300_render_stage; extern const struct tnl_pipeline_stage _r300_tcl_stage; extern const struct tnl_pipeline_stage _r300_texrect_stage; @@ -331,6 +336,9 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual, driInitExtensions(ctx, card_extensions, GL_TRUE); + if (driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side") == 0) + driInitSingleExtension(ctx, stencil_two_side); + if (r300->radeon.glCtx->Mesa_DXTn && !driQueryOptionb (&r300->radeon.optionCache, "disable_s3tc")) { _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" ); _mesa_enable_extension( ctx, "GL_S3_s3tc" ); diff --git a/src/mesa/drivers/dri/r300/r300_render.c b/src/mesa/drivers/dri/r300/r300_render.c index 03f168365dc..91305cb5a22 100644 --- a/src/mesa/drivers/dri/r300/r300_render.c +++ b/src/mesa/drivers/dri/r300/r300_render.c @@ -406,6 +406,10 @@ int r300Fallback(GLcontext *ctx) */ FALLBACK_IF(ctx->Fog.Enabled); #endif + FALLBACK_IF(ctx->Stencil._TestTwoSide && + (ctx->Stencil.Ref[0] != ctx->Stencil.Ref[1] || + ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[1] || + ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[1])); if(!r300->disable_lowimpact_fallback){ /* GL_POLYGON_OFFSET_POINT */ diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c index 72255066d59..6a22ccad2fd 100644 --- a/src/mesa/drivers/dri/r300/r300_state.c +++ b/src/mesa/drivers/dri/r300/r300_state.c @@ -509,7 +509,6 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state) if (r300->state.stencil.hw_stencil) { R300_STATECHANGE(r300, zs); if (state) { - WARN_ONCE("TODO - double side stencil !\n"); r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_STENCIL_ENABLE; } else { @@ -863,9 +862,12 @@ static void r300StencilFuncSeparate(GLcontext * ctx, GLenum face, (R300_RB3D_ZS2_STENCIL_MASK << R300_RB3D_ZS2_STENCIL_MASK_SHIFT)); flag = translate_func(ctx->Stencil.Function[0]); - - rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= (flag << R300_RB3D_ZS1_FRONT_FUNC_SHIFT) - | (flag << R300_RB3D_ZS1_BACK_FUNC_SHIFT); + rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= (flag << R300_RB3D_ZS1_FRONT_FUNC_SHIFT); + + if (ctx->Stencil._TestTwoSide) + flag = translate_func(ctx->Stencil.Function[1]); + + rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= (flag << R300_RB3D_ZS1_BACK_FUNC_SHIFT); rmesa->hw.zs.cmd[R300_ZS_CNTL_2] |= refmask; } @@ -894,10 +896,19 @@ static void r300StencilOpSeparate(GLcontext * ctx, GLenum face, GLenum fail, rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= (translate_stencil_op(ctx->Stencil.FailFunc[0]) << R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT) |(translate_stencil_op(ctx->Stencil.ZFailFunc[0]) << R300_RB3D_ZS1_FRONT_ZFAIL_OP_SHIFT) - |(translate_stencil_op(ctx->Stencil.ZPassFunc[0]) << R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT) - |(translate_stencil_op(ctx->Stencil.FailFunc[0]) << R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) - |(translate_stencil_op(ctx->Stencil.ZFailFunc[0]) << R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT) - |(translate_stencil_op(ctx->Stencil.ZPassFunc[0]) << R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT); + |(translate_stencil_op(ctx->Stencil.ZPassFunc[0]) << R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT); + + if (ctx->Stencil._TestTwoSide) { + rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= + (translate_stencil_op(ctx->Stencil.FailFunc[1]) << R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) + |(translate_stencil_op(ctx->Stencil.ZFailFunc[1]) << R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT) + |(translate_stencil_op(ctx->Stencil.ZPassFunc[1]) << R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT); + } else { + rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= + (translate_stencil_op(ctx->Stencil.FailFunc[0]) << R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) + |(translate_stencil_op(ctx->Stencil.ZFailFunc[0]) << R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT) + |(translate_stencil_op(ctx->Stencil.ZPassFunc[0]) << R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT); + } } static void r300ClearStencil(GLcontext * ctx, GLint s) diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c index 279357ab590..cee1f7e2f93 100644 --- a/src/mesa/drivers/dri/radeon/radeon_screen.c +++ b/src/mesa/drivers/dri/radeon/radeon_screen.c @@ -163,6 +163,11 @@ DRI_CONF_OPT_BEGIN(disable_lowimpact_fallback,bool,def) \ DRI_CONF_DESC(en,"Disable Low-impact fallback") \ DRI_CONF_OPT_END +#define DRI_CONF_DISABLE_DOUBLE_SIDE_STENCIL(def) \ +DRI_CONF_OPT_BEGIN(disable_stencil_two_side,bool,def) \ + DRI_CONF_DESC(en,"Disable GL_EXT_stencil_two_side") \ +DRI_CONF_OPT_END + const char __driConfigOptions[] = DRI_CONF_BEGIN @@ -174,6 +179,7 @@ DRI_CONF_BEGIN DRI_CONF_MAX_TEXTURE_COORD_UNITS(8, 2, 8) DRI_CONF_COMMAND_BUFFER_SIZE(8, 8, 32) DRI_CONF_DISABLE_FALLBACK(false) + DRI_CONF_DISABLE_DOUBLE_SIDE_STENCIL(false) DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB) @@ -189,7 +195,7 @@ DRI_CONF_BEGIN DRI_CONF_NO_RAST(false) DRI_CONF_SECTION_END DRI_CONF_END; -static const GLuint __driNConfigOptions = 16; +static const GLuint __driNConfigOptions = 17; #ifndef RADEON_DEBUG int RADEON_DEBUG = 0; -- 2.30.2