1 files changed, 289 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_fbo.c b/src/mesa/drivers/dri/nouveau/nouveau_fbo.c
new file mode 100644
index 00000000000..23525509d14
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_fbo.c
@@ -0,0 +1,289 @@
+#include "utils.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
+#include "fbobject.h"
+
+#include "nouveau_context.h"
+#include "nouveau_fbo.h"
+#include "nouveau_fifo.h"
+#include "nouveau_msg.h"
+#include "nouveau_object.h"
+#include "nouveau_reg.h"
+
+static GLboolean
+nouveau_renderbuffer_pixelformat(nouveau_renderbuffer_t * nrb,
+				 GLenum internalFormat)
+{
+	nrb->mesa.InternalFormat = internalFormat;
+
+	/*TODO: We probably want to extend this a bit, and maybe make
+	 *      card-specific? 
+	 */
+	switch (internalFormat) {
+	case GL_RGBA:
+	case GL_RGBA8:
+		nrb->mesa._BaseFormat = GL_RGBA;
+		nrb->mesa._ActualFormat = GL_RGBA8;
+		nrb->mesa.DataType = GL_UNSIGNED_BYTE;
+		nrb->mesa.RedBits = 8;
+		nrb->mesa.GreenBits = 8;
+		nrb->mesa.BlueBits = 8;
+		nrb->mesa.AlphaBits = 8;
+		nrb->cpp = 4;
+		break;
+	case GL_RGB:
+	case GL_RGB5:
+		nrb->mesa._BaseFormat = GL_RGB;
+		nrb->mesa._ActualFormat = GL_RGB5;
+		nrb->mesa.DataType = GL_UNSIGNED_BYTE;
+		nrb->mesa.RedBits = 5;
+		nrb->mesa.GreenBits = 6;
+		nrb->mesa.BlueBits = 5;
+		nrb->mesa.AlphaBits = 0;
+		nrb->cpp = 2;
+		break;
+	case GL_DEPTH_COMPONENT16:
+		nrb->mesa._BaseFormat = GL_DEPTH_COMPONENT;
+		nrb->mesa._ActualFormat = GL_DEPTH_COMPONENT16;
+		nrb->mesa.DataType = GL_UNSIGNED_SHORT;
+		nrb->mesa.DepthBits = 16;
+		nrb->cpp = 2;
+		break;
+	case GL_DEPTH_COMPONENT24:
+		nrb->mesa._BaseFormat = GL_DEPTH_COMPONENT;
+		nrb->mesa._ActualFormat = GL_DEPTH24_STENCIL8_EXT;
+		nrb->mesa.DataType = GL_UNSIGNED_INT_24_8_EXT;
+		nrb->mesa.DepthBits = 24;
+		nrb->cpp = 4;
+		break;
+	case GL_STENCIL_INDEX8_EXT:
+		nrb->mesa._BaseFormat = GL_STENCIL_INDEX;
+		nrb->mesa._ActualFormat = GL_DEPTH24_STENCIL8_EXT;
+		nrb->mesa.DataType = GL_UNSIGNED_INT_24_8_EXT;
+		nrb->mesa.StencilBits = 8;
+		nrb->cpp = 4;
+		break;
+	case GL_DEPTH24_STENCIL8_EXT:
+		nrb->mesa._BaseFormat = GL_DEPTH_STENCIL_EXT;
+		nrb->mesa._ActualFormat = GL_DEPTH24_STENCIL8_EXT;
+		nrb->mesa.DataType = GL_UNSIGNED_INT_24_8_EXT;
+		nrb->mesa.DepthBits = 24;
+		nrb->mesa.StencilBits = 8;
+		nrb->cpp = 4;
+		break;
+	default:
+		return GL_FALSE;
+		break;
+	}
+
+	return GL_TRUE;
+}
+
+static GLboolean
+nouveau_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
+			     GLenum internalFormat,
+			     GLuint width, GLuint height)
+{
+	nouveau_renderbuffer_t *nrb = (nouveau_renderbuffer_t *) rb;
+
+	if (!nouveau_renderbuffer_pixelformat(nrb, internalFormat)) {
+		fprintf(stderr, "%s: unknown internalFormat\n", __func__);
+		return GL_FALSE;
+	}
+
+	/* If this buffer isn't statically alloc'd, we may need to ask the
+	 * drm for more memory */
+	if (rb->Width != width || rb->Height != height) {
+		GLuint pitch;
+
+		/* align pitches to 64 bytes */
+		pitch = ((width * nrb->cpp) + 63) & ~63;
+
+		if (nrb->mem)
+			nouveau_mem_free(ctx, nrb->mem);
+		nrb->mem = nouveau_mem_alloc(ctx,
+					     NOUVEAU_MEM_FB |
+					     NOUVEAU_MEM_MAPPED,
+					     pitch * height, 0);
+		if (!nrb->mem)
+			return GL_FALSE;
+
+		/* update nouveau_renderbuffer info */
+		nrb->offset = nouveau_mem_gpu_offset_get(ctx, nrb->mem);
+		nrb->pitch = pitch;
+	}
+
+	rb->Width = width;
+	rb->Height = height;
+	rb->InternalFormat = internalFormat;
+
+	nouveauSpanSetFunctions(nrb);
+
+	return GL_TRUE;
+}
+
+static void
+nouveau_renderbuffer_delete(struct gl_renderbuffer *rb)
+{
+	GET_CURRENT_CONTEXT(ctx);
+	nouveau_renderbuffer_t *nrb = (nouveau_renderbuffer_t *) rb;
+
+	if (nrb->mem)
+		nouveau_mem_free(ctx, nrb->mem);
+	FREE(nrb);
+}
+
+nouveau_renderbuffer_t *
+nouveau_renderbuffer_new(GLenum internalFormat)
+{
+	nouveau_renderbuffer_t *nrb;
+
+	nrb = CALLOC_STRUCT(nouveau_renderbuffer);
+	if (!nrb)
+		return NULL;
+
+	_mesa_init_renderbuffer(&nrb->mesa, 0);
+
+	if (!nouveau_renderbuffer_pixelformat(nrb, internalFormat)) {
+		fprintf(stderr, "%s: unknown internalFormat\n", __func__);
+		return GL_FALSE;
+	}
+
+	nrb->mesa.AllocStorage = nouveau_renderbuffer_storage;
+	nrb->mesa.Delete = nouveau_renderbuffer_delete;
+
+	return nrb;
+}
+
+static void
+nouveau_cliprects_renderbuffer_set(nouveauContextPtr nmesa,
+				   nouveau_renderbuffer_t * nrb)
+{
+	nmesa->numClipRects = 1;
+	nmesa->pClipRects = &nmesa->osClipRect;
+	nmesa->osClipRect.x1 = 0;
+	nmesa->osClipRect.y1 = 0;
+	nmesa->osClipRect.x2 = nrb->mesa.Width;
+	nmesa->osClipRect.y2 = nrb->mesa.Height;
+	nmesa->drawX = 0;
+	nmesa->drawY = 0;
+	nmesa->drawW = nrb->mesa.Width;
+	nmesa->drawH = nrb->mesa.Height;
+}
+
+void
+nouveau_window_moved(GLcontext * ctx)
+{
+	nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+	nouveau_renderbuffer_t *nrb;
+
+	nrb = (nouveau_renderbuffer_t *) ctx->DrawBuffer->_ColorDrawBuffers[0];
+	if (!nrb)
+		return;
+
+	nouveau_cliprects_renderbuffer_set(nmesa, nrb);
+
+	/* Viewport depends on window size/position, nouveauCalcViewport
+	 * will take care of calling the hw-specific WindowMoved
+	 */
+	ctx->Driver.Viewport(ctx, ctx->Viewport.X, ctx->Viewport.Y,
+			     ctx->Viewport.Width, ctx->Viewport.Height);
+	/* Scissor depends on window position */
+	ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
+			    ctx->Scissor.Width, ctx->Scissor.Height);
+}
+
+GLboolean
+nouveau_build_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb)
+{
+	nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+	nouveau_renderbuffer_t *color[MAX_DRAW_BUFFERS];
+	nouveau_renderbuffer_t *depth;
+
+	_mesa_update_framebuffer(ctx);
+	_mesa_update_draw_buffer_bounds(ctx);
+
+	color[0] = (nouveau_renderbuffer_t *) fb->_ColorDrawBuffers[0];
+	if (fb->_DepthBuffer && fb->_DepthBuffer->Wrapped)
+		depth = (nouveau_renderbuffer_t *) fb->_DepthBuffer->Wrapped;
+	else
+		depth = (nouveau_renderbuffer_t *) fb->_DepthBuffer;
+
+	if (!nmesa->hw_func.BindBuffers(nmesa, 1, color, depth))
+		return GL_FALSE;
+	nouveau_window_moved(ctx);
+
+	return GL_TRUE;
+}
+
+static void
+nouveauDrawBuffer(GLcontext *ctx, GLenum buffer)
+{
+	nouveau_build_framebuffer(ctx, ctx->DrawBuffer);
+}
+
+static struct gl_framebuffer *
+nouveauNewFramebuffer(GLcontext *ctx, GLuint name)
+{
+	return _mesa_new_framebuffer(ctx, name);
+}
+
+static struct gl_renderbuffer *
+nouveauNewRenderbuffer(GLcontext *ctx, GLuint name)
+{
+	nouveau_renderbuffer_t *nrb;
+
+	nrb = CALLOC_STRUCT(nouveau_renderbuffer);
+	if (!nrb)
+		return NULL;
+
+	_mesa_init_renderbuffer(&nrb->mesa, name);
+
+	nrb->mesa.AllocStorage = nouveau_renderbuffer_storage;
+	nrb->mesa.Delete = nouveau_renderbuffer_delete;
+	return &nrb->mesa;
+}
+
+static void
+nouveauBindFramebuffer(GLcontext *ctx, GLenum target,
+		       struct gl_framebuffer *fb,
+		       struct gl_framebuffer *fbread)
+{
+	if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) {
+		nouveau_build_framebuffer(ctx, fb);
+	}
+}
+
+static void
+nouveauFramebufferRenderbuffer(GLcontext *ctx, struct gl_framebuffer *fb,
+			       GLenum attachment, struct gl_renderbuffer *rb)
+{
+	_mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
+	nouveau_build_framebuffer(ctx, fb);
+}
+
+static void
+nouveauRenderTexture(GLcontext * ctx, struct gl_framebuffer *fb,
+		     struct gl_renderbuffer_attachment *att)
+{
+}
+
+static void
+nouveauFinishRenderTexture(GLcontext * ctx,
+			   struct gl_renderbuffer_attachment *att)
+{
+}
+
+void
+nouveauInitBufferFuncs(struct dd_function_table *func)
+{
+	func->DrawBuffer = nouveauDrawBuffer;
+
+	func->NewFramebuffer = nouveauNewFramebuffer;
+	func->NewRenderbuffer = nouveauNewRenderbuffer;
+	func->BindFramebuffer = nouveauBindFramebuffer;
+	func->FramebufferRenderbuffer = nouveauFramebufferRenderbuffer;
+	func->RenderTexture = nouveauRenderTexture;
+	func->FinishRenderTexture = nouveauFinishRenderTexture;
+}
+